California (CA) Mud Runs & Obstacle Races

A complete list, guide & directory to obstacle races, adventure runs, and mud runs in California


Click an event name below to see course descriptions, obstalce lists, coupons, discounts, prizes, awards, parking cost, spectator fees and more about each event. You can also click here to find permanent obstacle courses & OCR training gyms and boxes in California.

  • Race discount More info
  • August 11, 2019
    San Mateo Bay Area California Kids Obstacle Challenge 2019
    Coyote Point Recreation Area, San Mateo, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • August 10, 2019
    Victorville California High Desert Mud Splash 2019
    San Bernardino County Fair Grounds, Victorville, CA, United States
      Learn More
  • August 10, 2019
    San Mateo Bay Area California Kids Obstacle Challenge 2019
    Coyote Point Recreation Area, San Mateo, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • August 10, 2019
    Huntington Beach California Epic Series Obstacle Challenge 2019
    Huntington Beach Sports Complex, Huntington Beach, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • August 03, 2019
    Save 50% with a Spartan Pass! Learn More
  • July 27, 2019
    Riverside California Tri Forces Mud Run 2019
    Ben Clark Public Training Center, Riverside, CA, United States
      Learn More
  • July 14, 2019
    Pescadero California K9 Gladiators Obstacle Race 2019
    Windance Farm, Pescadero, CA, United States
      Learn More
  • July 13, 2019
    Inland Empire California Terrain Racing Mud Run 2019
    EVOC Training Center, San Bernardino, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • June 30, 2019
    Truckee California Kids Adventure Games 2019
    Northstar, Truckee, CA, United States
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • June 29, 2019
    Truckee California Kids Adventure Games 2019
    Northstar, Truckee, CA, United States
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • June 22, 2019
    Save 10% on your EPIC Series with code MRG10 Learn More
  • June 15, 2019
    Orange County California Irvine Lake Mudrun Summer of Mud 2019
    Irvine Lake, Silverado, CA, United States
      Learn More
  • June 09, 2019
    Sacramento California Tough Mudder Classic & 5K 2019
    Gibson Ranch County Park, Sacramento, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 09, 2019
    Camp Pendleton California Marine Corps Mud Run 2019
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 08, 2019
    Sacramento California Tough Mudder Classic & 5K 2019
    Gibson Ranch County Park, Sacramento, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 08, 2019
    San Jose California Terrain Racing Mud Run 2019
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • June 08, 2019
    Camp Pendleton California Marine Corps Mud Run 2019
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 02, 2019
    Monterey California Spartan Race Spartan Sprint 2019
    Toro Park, Salinas, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • June 01, 2019
    Oroville California Lords Gym Mud Run 2019
    Feather Falls Lodge, Oroville, CA, United States
    Save 10% on your Lords Gym Mud Run with code MRG Learn More
  • June 01, 2019
    Monterey California Spartan Race Spartan Super 2019
    Toro Park, Salinas, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • May 19, 2019
    SoCal California Spartan Race Spartan Sprint Summer 2019
    Snow Summit Ski Resort, Big Bear Lake, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • May 18, 2019
    SoCal California Spartan Race Spartan Beast Summer 2019
    Snow Summit Ski Resort, Big Bear Lake, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • May 11, 2019
    San Diego California Bootcamp Challenge 2019
    Marine Corps Recruit Depot San Diego, San Diego, CA, United States
      Learn More
  • May 11, 2019
    San Bernardino California Mud Factor 2019
    Glen Helen Raceway, San Bernardino, CA, United States
      Learn More
  • May 11, 2019
    Tracy California ‘Lil Mud Runner Kids & Family Mud Run 2019
    Eagal Lakes Resort, Tracy, CA, United States
      Learn More
  • May 11, 2019
    Redding California Shasta Mud Run 2019
    McConnell Foundation’s Ross Ranch, Redding, CA, United States
    Save 10% on your Shasta Mud Run with code MRG1810 Learn More
  • May 04, 2019
    San Jose California Kids Obstacle Challenge 2019
    Joseph D. Grant Regional Park, San Jose, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • May 04, 2019
    Pinon Hills California Ruff Run 2019
    Troeger Ranch, Pinon Hills, CA, United States
      Learn More
  • May 04, 2019
    San Diego California The Inflatable Run 2019
    SDCCU Stadium, San Diego, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • May 03, 2019
    Monrovia California SISU Iron 2019
    Camp Trask, Monrovia, CA, United States
    Save 15% on your SISU Endurance with code MRG98 Learn More
  • April 27, 2019
    Logan Utah Aggie Obstacle Course Race 2019
    Mavericks Stadium, Adelanto, CA, United States
      Learn More
  • April 27, 2019
    Los Angeles California Kids Obstacle Challenge 2019
    Prado Regional Park, Chino, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • April 27, 2019
    Los Angeles SoCal California Rugged Maniac 2019
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • April 20, 2019
    San Diego California Kids Obstacle Challenge 2019
    Kit Carson Park, Escondido, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • April 20, 2019
    Fresno California Epic Series Obstacle Challenge 2019
    Woodward Regional Park, Fresno, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • April 20, 2019
    Livermore California Mud Factor 2019
    Club Moto Motocross Track, Livermore, CA, United States
      Learn More
  • April 14, 2019
    Temecula California Muddy Princess 2019
    Temecula Galway Downs, Temecula, CA, United States
      Learn More
  • April 12, 2019
    Borrego Springs California Gut Check Fitness West Coast SUCK 2019
    Anzo Borrego Desert, Borrego Springs, CA, United States
      Learn More
  • April 07, 2019
    Fresno California Mud Factor 2019
    Hobb’s Grove, Sanger, CA, United States
      Learn More
  • April 07, 2019
    Los Angeles California Tough Mudder Classic & 5K 2019
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • April 06, 2019
    Orange County California The Inflatable Run 2019
    OC Fair & Event Center, Costa Mesa, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • April 06, 2019
    Sacramento California Mud Factor 2019
    Granite Park, Sacramento, CA, United States
      Learn More
  • April 06, 2019
    Los Angeles California Tough Mudder Classic & 5K 2019
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 30, 2019
    Bay Area California The Inflatable Run 2019
    Solano County Fairgrounds, Vallejo, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • March 23, 2019
    Los Angeles California The Inflatable Run 2019
    Whittier Narrows Recreation Area, South El Monte, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • March 23, 2019
    San Francisco NorCal California Rugged Maniac 2019
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • March 17, 2019
    San Jose California Spartan Race Spartan Sprint 2019
    Diablo Grande, Patterson, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • March 16, 2019
    Los Angeles California Epic Series Obstacle Challenge Spring 2019
    LAPD Ahmanson Recruit Training Center, Los Angeles, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • March 16, 2019
    San Jose California Spartan Race Spartan Super 2019
    Diablo Grande, Patterson, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • March 10, 2019
    Agoura Hills California Muddy Warriors Xperience 2019
    Paramount Ranch, Agoura Hills, CA, United States
      Learn More
  • March 02, 2019
    Fresno California Epic Series Barnaby’s Challenge 2019
    Fresno Crossfit KBC, Fresno, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • February 16, 2019
    Santa Clarita California Grit OCR Spring 2019
    East Walker Ranch Open Space, Santa Clarita, CA, United States
    Save 20% on your Grit OCR with code MRG20 Learn More
  • January 27, 2019
    SoCal California Spartan Race Spartan Sprint Spring 2019
    Prado Regional Park, Chino, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • January 26, 2019
    SoCal California Spartan Race Spartan Super Spring 2019
    Prado Regional Park, Chino, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • December 09, 2018
    Los Angeles California Spartan Race Spartan Sprint 2018
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • December 08, 2018
    Los Angeles California Spartan Race Spartan Sprint 2018
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • December 02, 2018
    Long Beach California Metroflex OCR 2018
    Metroflex Gym Long Beach, Long Beach, CA, United States
      Learn More
  • December 02, 2018
    Save 50% with a Spartan Pass! Learn More
  • December 01, 2018
    Save 50% with a Spartan Pass! Learn More
  • November 18, 2018
    Agoura Hills California Muddy Warriors Xperience 2018
    Paramount Ranch, Agoura Hills, CA, United States
      Learn More
  • November 17, 2018
    San Bernardino California SB County Sheriff’s Mud Run 2018
    SBSD Training Grounds, San Bernardino, CA, United States
      Learn More
  • November 17, 2018
    Temecula SoCal California Rugged Maniac 2018
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • November 17, 2018
    Irvine California Terrain Racing Mud Run 2018
    Oak Canyon Park, Silverado, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • November 11, 2018
    Lakewood California OCR Throwdown 2018
    Lakewood High School, Lakewood, CA, United States
      Learn More
  • November 11, 2018
    Bakersfield California Mud Factor 2018
    Hart Memorial Park, Bakersfield, CA, United States
      Learn More
  • November 04, 2018
    Sacramento California Spartan Race Spartan Sprint 2018
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • November 04, 2018
    SoCal California Tough Mudder Half 2018
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • November 04, 2018
    SoCal California Tough Mudder 2018
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • November 03, 2018
    San Diego California Mud Factor 2018
    Bates Nut Farm, Valley ‍‍‍Center, CA, United States
      Learn More
  • November 03, 2018
    Sacramento California Spartan Race Spartan Super 2018
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • November 03, 2018
    SoCal California Tough Mudder Half 2018
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • November 03, 2018
    SoCal California Tough Mudder 2018
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • October 28, 2018
    San Diego California Mercenary Wars Team Event 2018
    Fit2Ripped Gym, San Diego, CA, United States
      Learn More
  • October 27, 2018
    Sacramento California Kids Obstacle Challenge 2018
    Gibson Ranch County Park, Sacramento, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • October 27, 2018
    Fresno California Epic Series Obstacle Course Race October 2018
    Fresno Regional Sports Complex, Fresno, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • October 21, 2018
    SoCal California Spartan Race Spartan Sprint Fall 2018
    Tejon Ranch, Lebec, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • October 20, 2018
    Vallejo California The Inflatable Run & Festival Bay Area 2018
    Solano County Fairgrounds, Vallejo, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • October 20, 2018
    SoCal California Spartan Race Spartan Beast Fall 2018
    Tejon Ranch, Lebec, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • October 20, 2018
    Sacramento California Rugged Maniac 2018
    Murieta Equestrian Center, Rancho Murieta, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • October 14, 2018
    Half Moon Bay California Pumpkin Run 2018
    Hatch Elementary School, Half Moon Bay, CA, United States
      Learn More
  • October 13, 2018
    Corning California Tehama Tough Mud Run 2018
    Rolling Hills Casino, Corning, CA, United States
      Learn More
  • October 07, 2018
    Los Angeles California Kids Obstacle Challenge 2018
    Oak Canyon Park, Silverado, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • October 07, 2018
    Carlsbad California Super Hero Obstacle Race Fall 2018
    Alga Norte Community Park, Carlsbad, CA, United States
      Learn More
  • October 06, 2018
    Los Angeles California Kids Obstacle Challenge 2018
    Oak Canyon Park, Silverado, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • October 06, 2018
    Los Angeles California The Inflatable Run 2018
    L.A. Fairplex, Pomona, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • September 30, 2018
    Lake Tahoe California Spartan Race Spartan Beast 2018
    Squaw Valley, Olympic Valley, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • September 30, 2018
    Lake Tahoe California Spartan Race Spartan Ultra 2018
    Squaw Valley, Olympic Valley, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • September 29, 2018
    Redding California Mud Mash at the Nash Ranch 2018
    Nash Ranch, Redding, CA, United States
      Learn More
  • September 29, 2018
    Lake Tahoe California Spartan Race Spartan Beast 2018
    Squaw Valley, Olympic Valley, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • September 23, 2018
    Auburn California Great Auburn Obstacle Race 2018
    Auburn Regional Park, Auburn, CA, United States
      Learn More
  • September 16, 2018
    Bay Area California Kids Obstacle Challenge 2018
    Coyote Point Recreation Area, San Mateo, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • September 15, 2018
    Bay Area California Kids Obstacle Challenge 2018
    Coyote Point Recreation Area, San Mateo, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • September 09, 2018
    Tracy California Eagal Lakes Resort Great American Hero 2018
    Eagal Lakes Resort, Tracy, CA, United States
      Learn More
  • September 08, 2018
    San Diego California EPIC Series 2018
    Fiesta Island, San Diego, CA, United States
    Save 20% on your EPIC Series with code MRG20 Learn More
  • September 01, 2018
    Big Bear Lake California Kids Adventure Games 2018
    Big Bear Lake, Big Bear Lake, CA, United States
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • September 01, 2018
    Inland Empire California Terrain Racing Mud Run 2018
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • August 25, 2018
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • August 25, 2018
    Apple Valley California Rockin the Desert 2018
    Horsemans Center Park, Apple Valley , CA, United States
      Learn More
  • August 11, 2018
    Huntington Beach California EPIC Series 2018
    Huntington Beach Sports Complex, Huntington Beach, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • July 21, 2018
    Adelanto California High Desert Mud Run 2018
    Adelanto Stadium, Adelanto, CA, United States
      Learn More
  • July 14, 2018
    Perris California Up Down N Dirty 4 a Cure Mud Run 2018
    Perris Auto Speedway, Perris, CA, United States
      Learn More
  • July 07, 2018
    Pescadero California K9 Gladiators Obstacle Race 2018
    Windance Farm, Pescadero, CA, United States
      Learn More
  • June 23, 2018
    Ridgecrest California Desert Mud Dash 2018
    Desert Empire, Ridgecrest, CA, United States
      Learn More
  • June 23, 2018
    Squaw Valley California Kids Adventure Games 2018
    Squaw Valley, Olympic Valley, CA, United States
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • June 16, 2018
    Orange County California Irvine Lake Mudrun Summer of Mud 2018
    Irvine Lake, Silverado, CA, United States
      Learn More
  • June 16, 2018
    Los Angeles California Hot an Dirty Mud Run Summer 2018
    TBA 2 hour drive from Los Angeles, CA, Los Angeles, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • June 10, 2018
    Camp Pendleton California Marine Corps Mud Run 2018
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 10, 2018
    Tahoe California Tough Mudder 2018
    Northstar, Truckee, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 09, 2018
    Camp Pendleton California Marine Corps Mud Run 2018
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 09, 2018
    Tahoe California Tough Mudder 2018
    Northstar, Truckee, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 09, 2018
    Monterey California Spartan Race Spartan Super 2018
    Toro Park, Salinas, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • May 27, 2018
    San Diego California Mercenary Wars 2018
    FIT Athletic Club San Diego, San Diego, CA, United States
      Learn More
  • May 26, 2018
    San Francisco California Rugged Maniac 2018
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 20, 2018
    Tracy California ‘Lil Mud Runner 2018
    Eagal Lakes Resort, Tracy, CA, United States
      Learn More
  • May 20, 2018
    SoCal California Spartan Race Spartan Sprint 2018
    Snow Summit Ski Resort, Big Bear Lake, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • May 19, 2018
    San Francisco California Mud Run on the Farm 2018
    Dell’Osso Farm, Lathrop, CA, United States
      Learn More
  • May 19, 2018
    San Jose California Terrain Racing Mud Run 2018
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • May 19, 2018
    SoCal California Spartan Race Spartan Beast 2018
    Snow Summit Ski Resort, Big Bear Lake, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • May 12, 2018
    Redding California Shasta Mud Run 2018
    McConnell Foundation’s Ross Ranch, Redding, CA, United States
    Save 10% on your Shasta Mud Run with code MRG1810 Learn More
  • May 06, 2018
    Los Angeles California EPIC Series 2018
    Los Angeles Police Academy, Los Angeles, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • May 06, 2018
    San Bernardino SoCal California Mud Factor 2018
    Glen Helen Raceway, San Bernardino, CA, United States
      Learn More
  • May 05, 2018
    Oroville California Lord’s Gym Kids Mud Run 2018
    Feather Falls Lodge, Oroville, CA, United States
    Save 10% on your Lords Gym Mud Run with code MRG Learn More
  • May 05, 2018
    Oroville California Lord’s Gym Mud Run 2018
    Feather Falls Lodge, Oroville, CA, United States
    Save 10% on your Lords Gym Mud Run with code MRG Learn More
  • May 05, 2018
    Temecula California The 5K Foam Fest 2018
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your The 5K Foam Fest with code MRG5 Learn More
  • May 04, 2018
    Monrovia California SISU Iron 2018
    Camp Trask, Monrovia, CA, United States
    Save 15% on your SISU Endurance with code MRG98 Learn More
  • April 28, 2018
    Port Hueneme California NBVC Mud Run 2018
    Naval Base Ventura County, Port Hueneme, CA, United States
      Learn More
  • April 28, 2018
    Mountain Ranch California Stop Drop & Mud 2018
    Mountain Ranch Community Park, Mountain Ranch, CA, United States
      Learn More
  • April 28, 2018
    Save 50% with a Spartan Pass! Learn More
  • April 28, 2018
    Los Angeles California Rugged Maniac 2018
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • April 22, 2018
    Solano California Mud Factor 2018
    Argyll MX, Dixon, CA, United States
      Learn More
  • April 21, 2018
    Orange County California The Inflatable Run 2018
    OC Fair & Event Center, Costa Mesa, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • April 21, 2018
    East Bay San Francisco California Mud Factor 2018
    Club Moto Motocross Track, Livermore, CA, United States
      Learn More
  • April 14, 2018
    Orange County California The Gladiator Rock ‘n Run 2018
    Angel Stadium, Anaheim, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • April 14, 2018
    San Diego California The Inflatable Run 2018
    SDCCU Stadium, San Diego, CA, United States
    Save $5 on your The Inflatable Run with code MUDRUNGUIDE Learn More
  • April 08, 2018
    Sacramento California Mud Factor 2018
    Granite Park, Sacramento, CA, United States
      Learn More
  • April 08, 2018
    Forestville California Russian River Mud Run Spring 2018
    Ya Ka Ama, Forestville, CA, United States
    Save $10 on your Russian River Mud Run with code MUDRUNGUIDE Learn More
  • April 07, 2018
    Irvine California Mud Factor 2018
    Oak Canyon Park, Silverado, CA, United States
      Learn More
  • April 07, 2018
    Fresno California Mud Factor Spring 2018
    Hobb’s Grove, Sanger, CA, United States
      Learn More
  • March 31, 2018
    Orange County California Zedtown 2018
    OC Fair & Event Center, Costa Mesa, CA, United States
      Learn More
  • March 31, 2018
    San Diego California Del Mar Mud Run 2018
    Del Mar Fairgrounds, Del Mar, CA, United States
    Save $5 on your Del Mar Mud Run with code MRG8239 Learn More
  • March 31, 2018
    Fresno California EPIC Series 2018
    Sierra Meadows Park, Clovis, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • March 25, 2018
    Sacramento California Tough Mudder X 2018
    Gibson Ranch County Park, Sacramento, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 25, 2018
    San Jose California Spartan Race Spartan Sprint 2018
    Diablo Grande, Patterson, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • March 24, 2018
    Sacramento California Tough Mudder Half 2018
    Gibson Ranch County Park, Sacramento, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 24, 2018
    Sacramento California Tough Mudder 2018
    Gibson Ranch County Park, Sacramento, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 24, 2018
    SoCal California Warrior Dash 2018
    Prado Regional Park, Chino, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • March 24, 2018
    San Jose California Spartan Race Spartan Super 2018
    Diablo Grande, Patterson, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • March 04, 2018
    Los Angeles California Tough Mudder Half 2018
    Polsa Rosa Ranch, Acton, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 04, 2018
    Los Angeles California Tough Mudder 2018
    Polsa Rosa Ranch, Acton, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 03, 2018
    Fresno California EPIC Series Barnaby’s Challenge 2018
    Playground Training Academy, Clovis, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • March 03, 2018
    California Tough Mudder America’s Toughest Mudder West 2018
    Polsa Rosa Ranch, Acton, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 03, 2018
    Los Angeles California Tough Mudder Half 2018
    Polsa Rosa Ranch, Acton, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 03, 2018
    Los Angeles California Tough Mudder 2018
    Polsa Rosa Ranch, Acton, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • February 17, 2018
    Santa Clarita California Grit OCR Spring 2018
    East Walker Ranch Open Space, Santa Clarita, CA, United States
    Save 10% on your Grit OCR with code MUDRUNGUIDE10 Learn More
  • January 28, 2018
    SoCal California Spartan Race Spartan Sprint 2018
    Prado Regional Park, Chino, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • January 27, 2018
    SoCal California Spartan Race Spartan Super 2018
    Prado Regional Park, Chino, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • January 13, 2018
    Diamond Bar California OCRLiveFit OCR Endurance 5K 2018
    Summitridge Park, Diamond Bar, CA, United States
      Learn More
  • January 06, 2018
    Chula Vista California EPIC Glow in the Dark Party 2018
    Chula Vista Elite Athlete Training Center, Chula Vista, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • January 06, 2018
    Chula Vista California EPIC Series San Diego 2018
    Chula Vista Elite Athlete Training Center, Chula Vista, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • December 10, 2017
    Los Angeles California Spartan Race Spartan Sprint 2017
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 09, 2017
    Los Angeles California Spartan Race Spartan Sprint 2017
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 02, 2017
    San Diego California Barnaby’s EPIC Series Challenge Course Winter 2017
    RoadRunner Sports, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • November 19, 2017
    Agoura Hills California Muddy Warriors Xperience 2017
    Paramount Ranch, Agoura Hills, CA, United States
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  • November 18, 2017
    Irvine California Terrain Racing Mud Run 2017
    Oak Canyon Park, Silverado, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • November 18, 2017
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 12, 2017
    Sacramento California Spartan Race Spartan Sprint 2017
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 11, 2017
    SoCal California Rugged Maniac Fall 2017
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • November 11, 2017
    SoCal California MuckFest MS 2017
    Prado Regional Park, Chino, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • November 11, 2017
    Sacramento California Spartan Race Spartan Super 2017
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 05, 2017
    SoCal California Tough Mudder Half 2017
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • November 05, 2017
    SoCal California Tough Mudder 2017
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • November 05, 2017
    Sacramento California Mud Factor Fall 2017
    Uncle Ray’s Pumpkin Patch, Sacramento, CA, United States
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  • November 04, 2017
    SoCal California Tough Mudder Half 2017
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • November 04, 2017
    SoCal California Tough Mudder 2017
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • October 29, 2017
    SoCal California Spartan Race Spartan Sprint #2 2017
    Bear Mountain Ski Resort, Big Bear Lake, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 28, 2017
    Sonora California High Country Goliath 2017
    Old Oak Ranch Conference Center, Sonora, CA, United States
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  • October 28, 2017
    NorCal California The Gladiator Rock ‘n Run 2017
    Casa de Fruta, Hollister, CA, United States
    Save 25% on your Gladiator Rock n Run with code MUDMONDAY25 Learn More
  • October 28, 2017
    Los Angeles California Hot an Dirty Mud Run Zombie Run 2017
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • October 28, 2017
    SoCal California Spartan Race Spartan Beast #2 2017
    Bear Mountain Ski Resort, Big Bear Lake, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 21, 2017
    Irvine California Mercenary Wars Orange County Trial 2017
    Fitness on Fire, Irvine, CA, United States
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  • October 15, 2017
    Half Moon Bay California Pumpkin Power Run 2017
    Hatch Elementary School, Half Moon Bay, CA, United States
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  • October 15, 2017
    NorCal California Tough Mudder Half 2017
    Sonoma Raceway, Sonoma, CA, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • October 15, 2017
    NorCal California Tough Mudder 2017
    Sonoma Raceway, Sonoma, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • October 14, 2017
    San Bernardino California SBSD Mud Run 2017
    SBSD Training Grounds, San Bernardino, CA, United States
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  • October 14, 2017
    NorCal California Rugged Maniac Fall 2017
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • October 14, 2017
    NorCal California Tough Mudder Half 2017
    Sonoma Raceway, Sonoma, CA, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • October 14, 2017
    NorCal California Tough Mudder 2017
    Sonoma Raceway, Sonoma, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • October 14, 2017
    San Diego California BootCamp Challenge 2017
    Marine Corps Recruit Depot San Diego, San Diego, CA, United States
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  • October 07, 2017
    Save 15% on your SISU Endurance with code MRG98 Learn More
  • October 01, 2017
    Carlsbad California Super Hero Obstacle Race 2017
    Alga Norte Community Park, Carlsbad, CA, United States
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  • October 01, 2017
    Bay Area California MuckFest MS 2017
    Solano County Fairgrounds, Vallejo, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • October 01, 2017
    Lake Tahoe California Spartan Race Spartan Ultra Beast 2017
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 01, 2017
    Lake Tahoe California Spartan Race Spartan Beast 2017
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 30, 2017
    Lake Tahoe California Spartan Race Spartan Beast 2017
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 24, 2017
    San Diego California Mercenary Wars 2017
    Grinder Gym, San Diego, CA, United States
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  • September 24, 2017
    Auburn California Great Auburn Obstacle Race 2017
    Auburn Regional Park, Auburn, CA, United States
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  • September 16, 2017
    SoCal California Survivor Mud Run Lake Elsinore 2017
    Storm Stadium, Lake Elsinore, CA, United States
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  • September 16, 2017
    Riverside California Bodcross Race 2017
    Milestone Motocross Park, Riverside, CA, United States
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  • September 10, 2017
    Tracy California Eagal Lakes Resort Great American Hero 2017
    Eagal Lakes Resort, Tracy, CA, United States
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  • September 09, 2017
    Orange County California The Gladiator Rock ‘n Run 2017
    Angel Stadium, Anaheim, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • September 09, 2017
    Los Angeles California Hot an Dirty Mud Run Mud Fest 2017
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • August 26, 2017
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • August 19, 2017
    Lakeshore California China Peak Mud Run 2017
    China Peak Mountain Resort, Lakeshore, CA, United States
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  • August 19, 2017
    Apple Valley California Rockin’ the Desert 2017
    Horsemans Center Park, Apple Valley , CA, United States
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  • August 19, 2017
    Los Angeles California Spartan Race Stadium Sprint 2017
    Dodger Stadium, Los Angeles, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 12, 2017
    Huntington Beach California EPIC Series 2017
    Huntington Beach Sports Complex, Huntington Beach, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • July 29, 2017
    Sacramento California Kids Obstacle Challenge 2017
    Granite Park, Sacramento, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • July 22, 2017
    Adelanto California High Desert Mud Run 2017
    Mavericks Stadium, Adelanto, CA, United States
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  • July 22, 2017
    San Diego California Kids Obstacle Challenge 2017
    Kit Carson Park, Escondido, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • July 15, 2017
    San Diego California Muddy Mortal 2017
    TBA San Diego, San Diego, CA, United States
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  • July 15, 2017
    Los Angeles California Hot an Dirty Mud Run Muddy Madness 2017
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • July 08, 2017
    Los Angeles California Kids Obstacle Challenge 2017
    Whittier Narrows Recreation Area, South El Monte, CA, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE19 Learn More
  • June 25, 2017
    Newport Beach California Liquid Run 2017
    Newport Dunes Waterfront Resort,, Newport Beach, CA, United States
    Save $5 on your The Liquid Run with code MRG5 Learn More
  • June 24, 2017
    Newport Beach California Liquid Run 2017
    Newport Dunes Waterfront Resort,, Newport Beach, CA, United States
    Save $5 on your The Liquid Run with code MRG5 Learn More
  • June 11, 2017
    Camp Pendleton California Marine Corps Mud Run 2017
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 11, 2017
    Sacramento California Tough Mudder 2017
    Gibson Ranch County Park, Sacramento, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • June 10, 2017
    San Diego California The EPIC Series Summer 2017
    Robb Athletic Field, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • June 10, 2017
    Camp Pendleton California Marine Corps Mud Run 2017
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 10, 2017
    Sacramento California Tough Mudder 2017
    Gibson Ranch County Park, Sacramento, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • June 03, 2017
    Monterey California Spartan Race Spartan Super 2017
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 27, 2017
    NorCal California Rugged Maniac 2017
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 21, 2017
    Anaheim California Berzerker Rage 2017
    Yorba Regional Park, Anaheim, CA, United States
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  • May 20, 2017
    San Jose California Terrain Racing Mud Run 2017
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • May 14, 2017
    Tracy California ‘Lil Mud Runner Mud Run 2017
    Eagal Lakes Resort, Tracy, CA, United States
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  • May 13, 2017
    Tracy California ‘Lil Mud Runner Mud Run 2017
    Eagal Lakes Resort, Tracy, CA, United States
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  • May 13, 2017
    Del Mar California Del Mar Mud Run Spring 2017
    Del Mar Fairgrounds, Del Mar, CA, United States
    Save $5 on your Del Mar Mud Run with code MRG8239 Learn More
  • May 13, 2017
    Redding California Shasta Mud Run 2017
    McConnell Foundation’s Ross Ranch, Redding, CA, United States
    Save $5 on your Shasta Mud Run with code MRG5K2017 Learn More
  • May 13, 2017
    SoCal California Rugged Maniac Spring 2017
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 07, 2017
    SoCal California Mud Factor 2017
    Glen Helen Raceway, San Bernardino, CA, United States
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  • April 30, 2017
    Solano California Mud Factor 2017
    Argyll MX, Dixon, CA, United States
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  • April 29, 2017
    East Bay California Mud Factor 2017
    Club Moto Motocross Track, Livermore, CA, United States
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  • April 23, 2017
    Los Angeles California The EPIC Series 2017
    Elysian Park, Los Angeles, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • April 22, 2017
    Ione California K9 Gladiators 2017
    Gold Country Pet Resort, Ione, CA, United States
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  • April 22, 2017
    Oroville California Lords Gym Mud Run 2017
    Feather Falls Lodge, Oroville, CA, United States
    Save 10% on your Lords Gym Mud Run with code MRG Learn More
  • April 08, 2017
    SoCal California Warrior Dash 2017
    Prado Regional Park, Chino, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • April 02, 2017
    Forestville California Russian River Mud Run Spring 2017
    Ya Ka Ama, Forestville, CA, United States
    Save $10 on your Russian River Mud Run with code MUDRUNGUIDE Learn More
  • April 01, 2017
    San Jose California Spartan Race Spartan Super 2017
    Diablo Grande, Patterson, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • March 26, 2017
    Los Angeles California Tough Mudder Half 2017
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • March 26, 2017
    Los Angeles California Tough Mudder 2017
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • March 25, 2017
    California Tough Mudder America’s Toughest Mudder West 2017
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 25, 2017
    Los Angeles California Tough Mudder Half 2017
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • March 25, 2017
    Los Angeles California Tough Mudder 2017
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • March 18, 2017
    California Cen Cal Movement Ultimate Ninja Athlete Qualifier 2017
    CenCal Movement, Visalia, CA, United States
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  • March 05, 2017
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  • February 18, 2017
    San Diego California The EPIC Series Winter 2017
    Qualcomm Stadium, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • February 12, 2017
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  • January 29, 2017
    SoCal California Spartan Race Spartan Sprint 2017
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 28, 2017
    SoCal California Spartan Race Spartan Super 2017
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 21, 2017
    Laguna Niguel California The EPIC Series 2017
    Laguna Niguel Regional Park, Laguna Niguel, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • January 07, 2017
    Devore California Berzerker Team Obstacle Challenge 2017
    Glen Helen Raceway, San Bernardino, CA, United States
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  • December 17, 2016
    San Diego California The EPIC Series Fall 2016
    NTC Park at Liberty Station, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • December 11, 2016
    Los Angeles California Spartan Race Spartan Sprint 2016
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 10, 2016
    Los Angeles California Spartan Race Spartan Sprint 2016
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 20, 2016
    Agoura Hills California Muddy Warriors Xperience 2016
    Paramount Ranch, Agoura Hills, CA, United States
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  • November 19, 2016
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  • November 19, 2016
    Irvine California Terrain Mud Run 2016
    Oak Canyon Park, Silverado, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • November 19, 2016
    SoCal California Rugged Maniac Fall 2016
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • November 13, 2016
    Sacramento California Spartan Race Spartan Sprint 2016
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 12, 2016
    California The Mountain Ultimate Ninja Athlete Qualifier 2016
    The Mountain Ninja Warrior, El Cajon, CA, United States
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  • November 12, 2016
    Sacramento California K9 Gladiators 2016
    Gold Country Pet Resort, Ione, CA, United States
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  • November 12, 2016
    Acton California Berzerker Team Obstacle Challenge 2016
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Berzerker OCR with code MRG10 Learn More
  • November 12, 2016
    Sacramento California Spartan Race Spartan Super 2016
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 12, 2016
    Los Angeles California MuckFest MS 2016
    Prado Regional Park, Chino, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • November 05, 2016
    Woodland California Woodland Mud Run 2016
    Woodland Christian High School, Woodland, CA, United States
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  • October 29, 2016
    San Jose California The Gladiator Rock ‘n Run NorCal 2016
    Casa de Fruta, Hollister, CA, United States
    Save 25% on your Gladiator Rock n Run with code MUDRUNGUIDE25 Learn More
  • October 29, 2016
    Corona California Heroes vs Villains 5K & Flag Gauntlet 2016
    Corona High School, Corona, CA, United States
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  • October 22, 2016
    Acton California Hot an Dirty Mud Run Escape from the Dead 2016
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • October 16, 2016
    Half Moon Bay California Pumpkin Power Run 2016
    Hatch Elementary School, Half Moon Bay, CA, United States
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  • October 15, 2016
    San Jose California Special Z Games 2016
    Pinto Lake County Park, Watsonville, CA, United States
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  • October 09, 2016
    SoCal California Tough Mudder 2016
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • October 08, 2016
    SoCal California Tough Mudder 2016
    Lake Elsinore Diamond, Lake Elsinore, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • October 02, 2016
    Carlsbad California Super Hero Obstacle Race 2016
    Alga Norte Community Park, Carlsbad, CA, United States
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  • October 02, 2016
    Lake Tahoe California Spartan Race Spartan Sprint 2016
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 02, 2016
    Lake Tahoe California Spartan Race Ultra Beast 2016
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 02, 2016
    Lake Tahoe California Spartan Race Spartan Beast 2016
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 01, 2016
    Lake Tahoe Spartan Race World Championship Spartan Beast 2016
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 01, 2016
    San Francisco California MuckFest MS 2016
    Solano County Fairgrounds, Vallejo, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • September 24, 2016
    San Luis Obispo California September Scramble 2016
    Laguna Lake Municipal Golf Course, San Luis Obispo, CA, United States
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  • September 24, 2016
    Redding California Nash Ranch Mud Mash 2016
    Nash Ranch, Redding, CA, United States
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  • September 24, 2016
    Del Mar California Del Mar Mud Run 2016
    Del Mar Fairgrounds, Del Mar, CA, United States
    Save $5 on your Del Mar Mud Run with code MRG8239 Learn More
  • September 18, 2016
    SoCal California Spartan Race Spartan Sprint #2 2016
    Pala Raceway, Pala, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 17, 2016
    Temecula California Color Games Kids Obstacle Run 2016
    Lake Skinner Recreation Area, Winchester, CA, United States
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  • September 17, 2016
    SoCal California Spartan Race Spartan Beast #2 2016
    Pala Raceway, Pala, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 17, 2016
    Southern California Survivor Mud Run 2016
    Storm Stadium, Lake Elsinore, CA, United States
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  • September 11, 2016
    Tracy California Eagal Lakes Resort Great American Hero 2016
    Eagal Lakes Resort, Tracy, CA, United States
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  • September 10, 2016
    Acton California Hot an Dirty Mud Run Mud Fest 2016
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • August 27, 2016
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • August 14, 2016
    Newport Beach California Parent & Me Obstacle Challenge 2016
    Marina Park, Newport Beach, CA, United States
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  • August 13, 2016
    Los Angeles California BattleFrog Obstacle Race Series 2016
    Storm Stadium, Lake Elsinore, CA, United States
    Save $20 on your BattleFrog Series with code MRG20 Learn More
  • August 06, 2016
    San Jose NorCal II California BattleFrog Obstacle Race Series 2016
    Diablo Grande, Patterson, CA, United States
    Save $20 on your BattleFrog Series with code MRG20 Learn More
  • July 24, 2016
    Pescadero California K9 Gladiators Obstacle Race 2016
    Windance Farm, Pescadero, CA, United States
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  • July 23, 2016
    Pescadero California K9 Gladiators Obstacle Race 2016
    Windance Farm, Pescadero, CA, United States
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  • July 23, 2016
    Victorville California High Desert Mud Run 2016
    San Bernardino County Fair Grounds, Victorville, CA, United States
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  • July 16, 2016
    Los Angeles California The EPIC Series Idea World Convention 2016
    LA Convention Center, Los Angeles, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • July 16, 2016
    NorCal California ROC Race Ridiculous Obstacle Challenge 5K 2016
    Santa Clara County Fairgrounds, San Jose, CA, United States
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  • July 16, 2016
    Acton California Hot an Dirty Mud Run Mud Splash 2016
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • July 16, 2016
    San Francisco California Spartan Race Spartan Super 2016
    Diablo Grande, Patterson, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • July 09, 2016
    Bellflower California Zombie Blood Run Outbreak 2016
    Hollywood Sports Park, Bellflower, CA, United States
    Save $10 on your Zombie Blood Run with code MRG10 Learn More
  • June 25, 2016
    SoCal California ROC Race Ridiculous Obstacle Challenge 5K 2016
    Stubhub Center, Carson, CA, United States
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  • June 25, 2016
    San Diego California The Gladiator Rock ‘n Run 2016
    Barona Oaks Motorcross Park, Lakeside, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2016 Learn More
  • June 18, 2016
    Newport Beach California The Liquid Run 2016
    Newport Dunes Waterfront Resort,, Newport Beach, CA, United States
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  • June 18, 2016
    SoCal California Rugged Maniac 2016
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • June 18, 2016
    California Irvine Lake Mud Run Summer of Mud 2016
    Irvine Lake, Silverado, CA, United States
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  • June 12, 2016
    Tahoe California Tough Mudder 2016
    Northstar, Truckee, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • June 11, 2016
    San Diego California The EPIC Series June 2016
    Robb Athletic Field, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • June 11, 2016
    Tahoe California Tough Mudder 2016
    Northstar, Truckee, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • June 05, 2016
    Camp Pendleton California Marine Corps Mud Run 2016
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 04, 2016
    Camp Pendleton California Marine Corps Mud Run 2016
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 04, 2016
    Monterey California Spartan Race Spartan Super 2016
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 21, 2016
    San Diego California The EPIC Series May 2016
    Dusty Rhodes Park, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • May 21, 2016
    Chico California 9RUN1 Challenge 2016
    Chico Mall, Chico, CA, United States
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  • May 21, 2016
    San Francisco California Mud Run on the Farm V 2016
    Dell’Osso Farm, Lathrop, CA, United States
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  • May 21, 2016
    Acton California Hot an Dirty Mud Run Muddy Madness 2016
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • May 21, 2016
    NorCal California Rugged Maniac 2016
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 15, 2016
    Tracy California Lil Mud Runner 2016
    Eagal Lakes Resort, Tracy, CA, United States
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  • May 14, 2016
    Tracy California Lil Mud Runner 2016
    Eagal Lakes Resort, Tracy, CA, United States
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  • May 14, 2016
    Redding California Shasta Mud Run 2016
    McConnell Foundation’s Ross Ranch, Redding, CA, United States
    Save 20% on your Shasta Mud Run with code MRG20 Learn More
  • May 14, 2016
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 14, 2016
    San Jose California Terrain Mud Run 2016
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • May 07, 2016
    Port Hueneme California NCTC Mud Run 2016
    NBVC Port Hueneme, Port Hueneme, CA, United States
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  • May 07, 2016
    Camarillo California Mud Crazy 2016
    Mission Oaks Park, Camarillo, CA, United States
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  • May 01, 2016
    Rocklin California Rocklin Ramble 2016
    Johnson Springview Park, Rocklin, CA, United States
      Learn More
  • May 01, 2016
    SoCal California Mud Factor 2016
    Glen Helen Raceway, San Bernardino, CA, United States
      Learn More
  • April 30, 2016
    Rocklin California Rocklin Ramble 2016
    Johnson Springview Park, Rocklin, CA, United States
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  • April 23, 2016
    Oroville California Lord’s Gym Mud Run 2016
    Feather Falls Lodge, Oroville, CA, United States
    Save 10% on your Lords Gym Mud Run with code MRG Learn More
  • April 17, 2016
    California MROC Training Ultimate Ninja Athlete Qualifier 2016
    MROC Training, Oceanside, CA, United States
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  • April 17, 2016
    Los Angeles California Tough Mudder Half 2016
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $10 on your Tough Mudder with code MRGU10 Learn More
  • April 16, 2016
    Northern California Survivor Mud Run 2016
    Van Vleck Ranch, Rancho Murieta, CA, United States
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  • April 16, 2016
    Los Angeles California Tough Mudder 2016
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • April 10, 2016
    Los Angeles California Down & Dirty Obstacle Race 2016
    Castaic Lake State Recreation Area, Castaic, CA, United States
      Learn More
  • April 06, 2016
    Los Angeles California American Ninja Warrior Regional Final 2016
    Universal Studios Hollywood, Universal City, CA, United States
      Learn More
  • April 05, 2016
    Los Angeles California American Ninja Warrior Regional Qualifying 2016
    Universal Studios Hollywood, Universal City, CA, United States
      Learn More
  • April 03, 2016
    Santa Rosa California Russian River Mud Run 2016
    Ya Ka Ama, Forestville, CA, United States
    Save $10 on your Russian River Mud Run with code MUDRUNGUIDE Learn More
  • April 02, 2016
    SoCal California Terrain Mud Run 2016
    Storm Stadium, Lake Elsinore, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • April 02, 2016
    Tulare California Mud Factor 2016
    DT-1 MX Park, Tulare, CA, United States
      Learn More
  • March 20, 2016
    NorCal Sacramento California Mud Factor 2016
    Granite Park, Sacramento, CA, United States
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  • March 19, 2016
    SoCal California Warrior Dash 2016
    Prado Regional Park, Chino, CA, United States
    Save $5 on your Warrior Dash with code WD2016MRG Learn More
  • March 06, 2016
    Fresno California Mud Factor 2016
    Hobb’s Grove, Sanger, CA, United States
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  • March 05, 2016
      Learn More
  • March 05, 2016
    Bakersfield California Mud Factor 2016
    Hart Memorial Park, Bakersfield, CA, United States
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  • February 27, 2016
    California Stone Core Ninja Ultimate Ninja Athlete Qualifier 2016
    Stone Core Ninja Fitness, Vacaville, CA, United States
      Learn More
  • February 27, 2016
    California Irvine Lake Mud Run Spring Break at the Lake 2016
    Irvine Lake, Silverado, CA, United States
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  • February 20, 2016
    San Francisco California BattleFrog Obstacle Race Series 2016
    Lake Sonoma, Geyserville, CA, United States
    Save $20 on your BattleFrog Series with code MRG20 Learn More
  • February 06, 2016
    Los Angeles California BattleFrog Obstacle Race Series 2016
    TBA 2 hour drive from Los Angeles, CA, Los Angeles, CA, United States
    Save $20 on your BattleFrog Series with code MRG20 Learn More
  • January 31, 2016
    SoCal California Spartan Race Spartan Sprint Spring 2016
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 30, 2016
    SoCal California Spartan Race Spartan Super Spring 2016
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 23, 2016
    San Diego California BattleFrog Obstacle Race Series 2016
    212 Land, Boulevard, CA, United States
    Save $20 on your BattleFrog Series with code MRG20 Learn More
  • December 13, 2015
    California MROC Training Ultimate Ninja Athlete Qualifier 2015
    MROC Training, Oceanside, CA, United States
      Learn More
  • December 06, 2015
    Los Angeles California Spartan Race Spartan Sprint 2015
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 05, 2015
    California 323 Ninja Grounds Ultimate Ninja Athlete Qualifier 2015
    323 Ninja Training Grounds, East Los Angeles, CA, United States
      Learn More
  • December 05, 2015
    Los Angeles California Spartan Race Spartan Sprint 2015
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 22, 2015
    San Francisco California Men’s Health Urbanathlon 2015
    ATT Park, San Francisco, CA, United States
      Learn More
  • November 14, 2015
    Save 30% on your American Hotshots Extreme Run with code MRG30 Learn More
  • November 14, 2015
    SoCal California Rugged Maniac 2015
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • November 08, 2015
    Sacramento California Spartan Race Spartan Sprint 2015
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 07, 2015
    Poway California Gut Check Challenge 2015
    Lake Poway, Poway, CA, United States
      Learn More
  • November 07, 2015
    Newbury Park California Mud Crazy 2015
    Dos Vientos, Newbury Park, CA, United States
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  • November 07, 2015
    Orange County California WIPEOUTRUN 2015
    Verizon Wireless Amphitheatre, Irvine, CA, United States
    Save 10% on your WIPEOUTRUN with code MRGFINAL10 Learn More
  • November 07, 2015
    Sacramento California Spartan Race Super Spartan 2015
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 07, 2015
    Temecula California The Zombie Run 2015
    Twin Creeks Ranch, South Aguanga, CA, United States
    Save $15 on your The Zombie Run with code MRG15 Learn More
  • November 01, 2015
    SoCal California Tough Mudder 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • November 01, 2015
    Sacramento California Down & Dirty Obstacle Race 2015
    Folsom Lake State Recreation Area, Granite Bay, CA, United States
      Learn More
  • October 31, 2015
    SoCal California Tough Mudder 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • October 24, 2015
    Los Angeles California Hot an Dirty Mud Run Zombie Run 2015
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • October 24, 2015
    Los Angeles California MuckFest MS 2015
    Prado Regional Park, Chino, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • October 18, 2015
    Half Moon Bay California HMB Pumpkin Run 2015
    Hatch Elementary School, Half Moon Bay, CA, United States
      Learn More
  • October 18, 2015
    Northridge California The Rush Games 2015
    California State University at Northridge, Northridge, CA, United States
      Learn More
  • October 17, 2015
    Corona California Heroes vs Villains 5K & Flag Gauntlet 2015
    The Shops at Dos Lagos, Corona , CA, United States
      Learn More
  • October 17, 2015
    Pasadena California The Gladiator Rock ‘N Run 2015
    Rose Bowl, Pasadena, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • October 10, 2015
    Anaheim Hills California OC Bootcamp Games 2015
    Ronald Reagan Park, Anaheim Hills, CA, United States
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  • October 10, 2015
    California Apex Movement NorCal National Ninja League Qualifier #3 2015
    APEX Movement NorCal, Concord, CA, United States
      Learn More
  • October 10, 2015
    San Francisco California MuckFest MS 2015
    Solano County Fairgrounds, Vallejo, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • October 04, 2015
    Lake Tahoe California Spartan Race Spartan Beast 2015
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 04, 2015
    Lake Tahoe California Spartan Race Ultra Beast 2015
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 04, 2015
    Lake Tahoe California Spartan Race Spartan Sprint 2015
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 03, 2015
    Lake Tahoe Spartan Race World Championship Spartan Beast 2015
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 27, 2015
    SoCal Vail Lake California Spartan Race Spartan Sprint #2 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 26, 2015
    California Apex Movement NorCal National Ninja League Qualifier #1 2015
    APEX Movement NorCal, Concord, CA, United States
      Learn More
  • September 26, 2015
    Sacramento California Scavenger Dash 2015
    River City Saloon, Sacramento, CA, United States
      Learn More
  • September 26, 2015
    Del Mar California Del Mar Mud Run 2015
    Del Mar Fairgrounds, Del Mar, CA, United States
    Save $5 on your Del Mar Mud Run with code MRG8239 Learn More
  • September 26, 2015
    SoCal Vail Lake California Spartan Race Spartan Beast #2 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 20, 2015
    Ferndale California Humboldt County Mudrun 2015
    Humboldt County Fairgrounds, Ferndale, CA, United States
      Learn More
  • September 20, 2015
    Yuba / Sutter California Mud Factor 2015
    MMX Raceway, Linda, CA, United States
      Learn More
  • September 19, 2015
    Southern California Survivor Mud Run 2015
    Storm Stadium, Lake Elsinore, CA, United States
      Learn More
  • September 12, 2015
    Orange County California The EPIC Series 2015
    TBA 2 hour drive from Los Angeles, CA, Los Angeles, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • September 12, 2015
    Los Angeles California Hot an Dirty Mud Run Mud Fest 2015
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • September 05, 2015
    Sacramento California WIPEOUTRUN 2015
    Cal Expo Center, Sacramento, CA, United States
    Save 10% on your WIPEOUTRUN with code MRGFINAL10 Learn More
  • August 29, 2015
    Tracy California Great American Hero 2015
    Eagal Lakes Resort, Tracy, CA, United States
      Learn More
  • August 22, 2015
    Piru Piru California 5K Wet ‘N Wild Adventure Run 2015
    Lake Piru Recreation Area, Piru, CA, United States
      Learn More
  • August 22, 2015
    Lakeshore California China Peak Mud Run 2015
    China Peak Mountain Resort, Lakeshore, CA, United States
      Learn More
  • August 22, 2015
    Apple Valley California Rockin the Desert 2015
    Horsemans Center Park, Apple Valley , CA, United States
      Learn More
  • August 22, 2015
    Bellflower California Zombie Blood Run 2015
    Hollywood Sports Park, Bellflower, CA, United States
    Save $10 on your Zombie Blood Run with code MRG10 Learn More
  • August 22, 2015
    Piru California Wet N’ Wild Krusher Series 2015
    Lake Piru Recreation Area, Piru, CA, United States
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  • August 22, 2015
    Bay Area California WIPEOUTRUN 2015
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save 10% on your WIPEOUTRUN with code MRGFINAL10 Learn More
  • August 15, 2015
    Victorville California Delivery Land Obstacle 5K
    San Bernardino County Fair Grounds, Victorville, CA, United States
      Learn More
  • August 15, 2015
    Los Angeles California Escape Obstacle Run 2015
    Prado Regional Park, Chino, CA, United States
      Learn More
  • August 08, 2015
    Watsonville California The Muddy Patriot 2015
    Mt. Madonna Park, Watsonville, CA, United States
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  • July 25, 2015
    Los Angeles California Mavericks Music Mud Run 2015
    Mavericks Stadium, Adelanto, CA, United States
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  • July 25, 2015
    Orange County California The Gladiator Rock ‘n Run 2015
    Irvine Lake, Silverado, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • July 18, 2015
    Save 10% on your Spartan Race with code MRG10 Learn More
  • July 11, 2015
    Los Angeles California Hot an Dirty Mud Run Mud Splash 2015
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • July 10, 2015
    San Diego California The Walking Dead Escape 2015
    Petco Park, San Diego, CA, United States
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  • June 27, 2015
    NorCal California Mudderella 2015
    Solano County Fairgrounds, Vallejo, CA, United States
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  • June 20, 2015
    California Irvine Lake Mud Run Summer of Mud 2015
    Irvine Lake, Silverado, CA, United States
      Learn More
  • June 14, 2015
    Tahoe California Tough Mudder 2015
    Northstar, Truckee, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 14, 2015
    Camp Pendleton California World Famous Mud Run #2 2015
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 13, 2015
    Tahoe California Tough Mudder 2015
    Northstar, Truckee, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 13, 2015
    Oroville California Lord’s Gym Mud Run 2015
    Feather Falls Lodge, Oroville, CA, United States
    Save 10% on your Lords Gym Mud Run with code MRG Learn More
  • June 13, 2015
    Camp Pendleton California World Famous Mud Run #2 2015
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 13, 2015
    San Jose California The Gladiator Rock ‘n Run 2015
    Joseph D. Grant Regional Park, San Jose, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • June 07, 2015
    Camp Pendleton California World Famous Mud Run #1 2015
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 06, 2015
    Camp Pendleton California World Famous Mud Run #1 2015
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 06, 2015
    Monterey California Spartan Race Super Spartan 2015
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 30, 2015
    Lathrop California Mud Run on the Farm 2015
    Dell’Osso Farm, Lathrop, CA, United States
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  • May 23, 2015
    NorCal California Rugged Maniac 2015
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 17, 2015
    Tracy California ‘Lil Mud Runner 2015
    Eagal Lakes Resort, Tracy, CA, United States
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  • May 16, 2015
    Los Angeles California Hot an Dirty Mud Run Muddy Madness 2015
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • May 16, 2015
    Hemet California Jurassic Classic Mud Run
    Diamond Valley Lake Community Park, Hemet, CA, United States
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  • May 16, 2015
    Tracy California ‘Lil Mud Runner 2015
    Eagal Lakes Resort, Tracy, CA, United States
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  • May 09, 2015
    San Diego California WIPEOUTRUN 2015
    Del Mar Fairgrounds, Del Mar, CA, United States
    Save 10% on your WIPEOUTRUN with code MRGFINAL10 Learn More
  • May 02, 2015
    Newport Beach California OC’s Fittest Trainer 2015
    Newport-Mesa YMCA, Newport Beach, CA, United States
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  • May 02, 2015
    Santa Paula California 5K Mud Run Krusher 2015
    Ventura Ranch KOA Campground, Santa Paula, CA, United States
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  • May 02, 2015
    Marysville California Yuba City Mud Run 2015
    Yuba Sutter River Bottoms – Beckwourth Riverfront Park, Marysville, CA, United States
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  • May 02, 2015
    Sacramento California Pretty Muddy Women’s Mud Run 2015
    Granite Park, Sacramento, CA, United States
    Save $10 on your Pretty Muddy with code MRG10 Learn More
  • April 26, 2015
    San Bernardino California Mud Factor Spring 2015
    Glen Helen Raceway, San Bernardino, CA, United States
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  • April 25, 2015
    San Jose California Kiss Me Dirty 2015
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save $5 on your Kiss Me Dirty with code MRG Learn More
  • April 18, 2015
    Northern California Survivor Mud Run 2015
    Van Vleck Ranch, Rancho Murieta, CA, United States
      Learn More
  • April 12, 2015
    Los Angeles California Down & Dirty Obstacle Race 2015
    Castaic Lake State Recreation Area, Castaic, CA, United States
    Save $5 on your Down and Dirty Obstacle Race with code MRGDD5 Learn More
  • April 11, 2015
    Save 30% on your American Hotshots Extreme Run with code MRG30 Learn More
  • April 11, 2015
    Sacramento California Top Ninjas 5K Challenge 2015
    TBA 2 Hour Drive from Sacramento, Sacramento, CA, United States
      Learn More
  • March 29, 2015
    Los Angeles California Tough Mudder 2015
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 28, 2015
    Sacramento California Dirty Girl Mud Run 2015
    Sacramento Raceway, Sacramento, CA, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • March 28, 2015
    Calistoga California Pretty Muddy Women’s Mud Run 2015
    Napa County Fair Grounds, Calistoga, CA, United States
    Save $10 on your Pretty Muddy with code MRG10 Learn More
  • March 28, 2015
    Los Angeles California Tough Mudder 2015
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 22, 2015
    Sacramento California Mud Factor Spring 2015
    Granite Park, Sacramento, CA, United States
      Learn More
  • March 21, 2015
    SoCal California Warrior Dash 2015
    Prado Regional Park, Chino, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • March 15, 2015
    Fresno California Mud Factor 2015
    Hobb’s Grove, Sanger, CA, United States
      Learn More
  • March 14, 2015
    California Spring Break at the Lake Irvine Lake Mud Run 2015
    Irvine Lake, Silverado, CA, United States
      Learn More
  • March 08, 2015
    Bakersfield California Mud Factor 2015
    Hart Memorial Park, Bakersfield, CA, United States
      Learn More
  • March 01, 2015
    SoCal California Atlas Race 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Atlas Race with code MRG25 Learn More
  • February 28, 2015
    Los Angeles California LoziLu Women’s Mud Run 2015
    Prado Regional Park, Chino, CA, United States
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  • February 28, 2015
    SoCal California Atlas Race 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Atlas Race with code MRG25 Learn More
  • January 25, 2015
    SoCal Vail Lake California Spartan Race Spartan Sprint Spring 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 24, 2015
    SoCal Vail Lake California Spartan Race Super Spartan Spring 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 18, 2015
    SoCal Vail Lake California Spartan Race Spartan Sprint #1 Spring 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 17, 2015
    SoCal Vail Lake California Spartan Race Spartan Beast Spring 2015
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 13, 2014
    San Francisco California Out-Fit Challenge 2014
    Solano County Fairgrounds, Vallejo, CA, United States
      Learn More
  • December 07, 2014
    Malibu California Spartan Race Spartan Sprint 2014
    Calamigos Ranch, Malibu, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 06, 2014
    Malibu California Spartan Race Spartan Sprint 2014
    Calamigos Ranch, Malibu, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 23, 2014
    San Francisco California Men’s Health Urbanathlon 2014
    ATT Park, San Francisco, CA, United States
      Learn More
  • November 15, 2014
    Bako California Mud Factor Fall 2014
    Hart Memorial Park, Bakersfield, CA, United States
      Learn More
  • November 15, 2014
    Temecula California The Zombie Run 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save $15 on your The Zombie Run with code MRG15 Learn More
  • November 15, 2014
    SoCal California Rugged Maniac 2014
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • November 08, 2014
    Central California (CenCal) Mud Factor Fall 2014
    Hobb’s Grove, Sanger, CA, United States
      Learn More
  • November 02, 2014
    Newbury Park California Mud Crazy Dos Vientos 2014
    Dos Vientos, Newbury Park, CA, United States
      Learn More
  • November 02, 2014
    Sacramento California Merrell Down & Dirty Obstacle Race 2014
    Folsom Lake State Recreation Area, Granite Bay, CA, United States
      Learn More
  • October 26, 2014
    Sacramento California Spartan Race Spartan Sprint 2014
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 26, 2014
    SoCal California Tough Mudder 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • October 25, 2014
    San Bernardino California World Famous Foam Run 2014
    NOS Event Center, San Bernardino, CA, United States
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  • October 25, 2014
    Pasadena California The Gladiator Rock ‘n Run 2014
    Rose Bowl, Pasadena, CA, United States
    Save $15 on your Gladiator Rock n Run with code MRGRB2014 Learn More
  • October 25, 2014
    SoCal California Tough Mudder 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • October 25, 2014
    Sacramento California Spartan Race Super Spartan 2014
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 25, 2014
    San Luis Obispo California Mud Mash 2014
    Laguna Lake Park, San Luis Obispo, CA, United States
      Learn More
  • October 25, 2014
    Los Angeles California MuckFest MS 2014
    Prado Regional Park, Chino, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • October 18, 2014
    Temecula California Zombie Run Temecula 2014
    Temecula Galway Downs, Temecula, CA, United States
      Learn More
  • October 18, 2014
    Sacramento California Capitol Apocalypse 5k Zombie Run 2014
    Miller Park, Sacramento, CA, United States
      Learn More
  • October 18, 2014
    Acton California Hot an Dirty Zombie Apocalypse Mud Run 2014
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • October 18, 2014
    World Championship Warrior Dash 2014
    Yolo Land & Cattle Co., Esparto, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • October 18, 2014
    California (NorCal) Warrior Dash 2014
    Yolo Land & Cattle Co., Esparto, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • October 11, 2014
    California Russian River Mud Run Fall 2014
    Shone Farm, Forestville, CA, United States
    Save $10 on your Russian River Mud Run with code MUDRUNGUIDE Learn More
  • October 11, 2014
    San Francisco California MuckFest MS 2014
    Solano County Fairgrounds, Vallejo, CA, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • October 04, 2014
    San Jose California The Muddy Patriot 2014
    Muddy Patriot San Jose, San Martin, CA, United States
      Learn More
  • October 04, 2014
    San Jose California Mud Factor 2014
    Joseph D. Grant Regional Park, San Jose, CA, United States
      Learn More
  • October 04, 2014
    California Del Mar Mud Run 2014
    Del Mar Fairgrounds, Del Mar, CA, United States
    Save $5 on your Del Mar Mud Run with code MRG8239 Learn More
  • October 04, 2014
    SoCal California Mudderella 2014
    Vail Lake Resort, South Temecula, CA, United States
      Learn More
  • September 27, 2014
    Corona California Heroes vs Villains 5K & Flag Gauntlet 2014
    The Shops at Dos Lagos, Corona , CA, United States
      Learn More
  • September 20, 2014
    Yuba / Sutter California Mud Factor 2014
    MMX Raceway, Linda, CA, United States
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  • September 20, 2014
    Southern California Survivor Mud Run 2014
    Storm Stadium, Lake Elsinore, CA, United States
      Learn More
  • September 14, 2014
    Ferndale California Humboldt County Mudrun 2014
    Humboldt County Fairgrounds, Ferndale, CA, United States
      Learn More
  • September 14, 2014
    SoCal California Spartan Race Spartan Sprint Fall 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 13, 2014
    Petaluma California MudMan 2014
    US Coast Guard Base, Two Rock, Petaluma, CA, United States
      Learn More
  • September 13, 2014
    SoCal Vail Lake Spartan Race Spartan Beast 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 06, 2014
    Sacramento California ROC Race Ridiculous Obstacle Challenge 5K 2014
    Cal Expo Center, Sacramento, CA, United States
      Learn More
  • September 06, 2014
    Acton California Hot an Dirty Mud Fest 2014
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • August 30, 2014
    Los Angeles California Zombie Blood Run 2014
    Hollywood Sports Park, Bellflower, CA, United States
    Save $10 on your Zombie Blood Run with code MRG10 Learn More
  • August 23, 2014
    Sacramento California Wake Island Mud Run 2014
    Wake island, Pleasant Grove, CA, United States
      Learn More
  • August 23, 2014
    Temecula California Circus Odelay Thrill Seeker Experience 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save $10 on your ThrillSeeker 5K Stunt Run with code MRG10 Learn More
  • August 23, 2014
    Bay Area California ROC Race Ridiculous Obstacle Challenge 5K 2014
    Santa Clara County Fairgrounds, San Jose, CA, United States
      Learn More
  • August 17, 2014
    Tahoe Tough Mudder 2014
    Northstar, Truckee, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • August 16, 2014
    Tahoe Tough Mudder 2014
    Northstar, Truckee, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • August 09, 2014
    ATT Park San Francisco Spartan Race Spartan Sprint 2014
    ATT Park, San Francisco, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 02, 2014
    Lakeshore California China Peak Mud Run 2014
    China Peak Mountain Resort, Lakeshore, CA, United States
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  • August 02, 2014
    San Diego California Super Gladiator The Gladiator Rock ‘n Run 2014
    Barona Oaks Motorcross Park, Lakeside, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • July 12, 2014
    Acton California Hot an Dirty Mud Splash 2014
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • June 28, 2014
    San Jose California The Gladiator Rock ‘n Run 2014
    Joseph D. Grant Regional Park, San Jose, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • June 28, 2014
    Bay Area California (NorCal) Atlas Race 2014
    TBA 2 Hour Drive from Sacramento, Sacramento, CA, United States
    Save 25% on your Atlas Race with code MRG25 Learn More
  • June 21, 2014
    Corona California Mach One Mud Run 2014
    Corona Municipal Airport, Corona, CA, United States
      Learn More
  • June 21, 2014
    California Irvine Lake Mud Run Summer of Mud 2014
    Irvine Lake, Silverado, CA, United States
      Learn More
  • June 14, 2014
    SoCal Irvine California The Gladiator Rock ‘n Run 2014
    Orange County Great Park, Irvine, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • June 08, 2014
    Camp Pendleton California World Famous Mud Run 2014
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 07, 2014
    Camp Pendleton California World Famous Mud Run 2014
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 07, 2014
    Sacramento California Top Ninjas 2014
    Gibson Ranch County Park, Sacramento, CA, United States
      Learn More
  • June 07, 2014
    Monterey California Spartan Race Spartan Beast 2014
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • June 01, 2014
    Camp Pendleton California World Famous Mud Run 2014
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • June 01, 2014
    Rocklin California Ramble Crazy Fun 5K Obstacle Course 2014
    Johnson Springview Park, Rocklin, CA, United States
      Learn More
  • May 31, 2014
    Camp Pendleton California World Famous Mud Run 2014
    Camp Pendleton (Lake O’Neill), Camp Pendleton, CA, United States
    Save $5 on your Marine Corps Mud Run with code MRGMCMR19 Learn More
  • May 24, 2014
    NorCal California Rugged Maniac 2014
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 18, 2014
    Santa Ynez California American Hotshots Extreme Run 2014
    Dirt Club, Los Olivos, CA, United States
    Save 30% on your American Hotshots Extreme Run with code MRG30 Learn More
  • May 17, 2014
    Santa Ynez California American Hotshots Extreme Run 2014
    Dirt Club, Los Olivos, CA, United States
    Save 30% on your American Hotshots Extreme Run with code MRG30 Learn More
  • May 17, 2014
    San Bernardino California SBSD Mud Run 2014
    SBSD Training Grounds, San Bernardino, CA, United States
      Learn More
  • May 17, 2014
    Acton California Hot an Dirty Mud Run 2014
    Acton Movie Ranch, Acton, CA, United States
    Save $10 on your Hot an Dirty Mud Run with code MRG10 Learn More
  • May 17, 2014
    Sacramento California NorCal Mud Run 2014
    Davis Ranch, Sloughhouse, CA, United States
    Save $15 on your NorCal Mud Run with code mrguide Learn More
  • May 10, 2014
    Camarillo California Mud Crazy 2014
    Mission Oaks Park, Camarillo, CA, United States
      Learn More
  • May 10, 2014
    San Diego California ROC Race Ridiculous Obstacle Challenge 5K 2014
    Del Mar Fairgrounds, Del Mar, CA, United States
      Learn More
  • May 10, 2014
    San Diego California (SoCal) Atlas Race 2014
    TBA San Diego, San Diego, CA, United States
    Save 25% on your Atlas Race with code MRG25 Learn More
  • May 03, 2014
    OC Orange County California ROC Race Ridiculous Obstacle Challenge 5K 2014
    Orange County Great Park, Irvine, CA, United States
      Learn More
  • May 03, 2014
    Sacramento California Pretty Muddy Women’s Mud Run 2014
    Granite Park, Sacramento, CA, United States
    Save $10 on your Pretty Muddy with code MRG10 Learn More
  • April 26, 2014
    Monterey County California M.O.R.E. Wildflower 2014
    Lake San Antonio South Shore, bradley, CA, United States
      Learn More
  • April 26, 2014
    San Jose California Kiss Me Dirty 2014
    Santa Clara County Fairgrounds, San Jose, CA, United States
    Save $5 on your Kiss Me Dirty with code MRG Learn More
  • April 26, 2014
    Northern California Survivor Mud Run 2014
    Van Vleck Ranch, Rancho Murieta, CA, United States
      Learn More
  • April 26, 2014
    SoCal California Mud Factor 2014
    Glen Helen Raceway, San Bernardino, CA, United States
      Learn More
  • April 19, 2014
    Redondo Beach California SEALTrek No-Easy-Day 2014
    Veterans Park, Redondo Beach, CA, United States
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  • April 13, 2014
    NorCal California Tough Mudder 2014
    Diablo Grande, Patterson, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • April 13, 2014
    Los Angeles California Merrell Down & Dirty Obstacle Race 2014
    Castaic Lake State Recreation Area, Castaic, CA, United States
      Learn More
  • April 12, 2014
    NorCal California Mud Factor 2014
    Granite Park, Sacramento, CA, United States
      Learn More
  • April 12, 2014
    NorCal California Tough Mudder 2014
    Diablo Grande, Patterson, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • April 05, 2014
    California (SoCal) Warrior Dash 2014
    Storm Stadium, Lake Elsinore, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • March 30, 2014
    Los Angeles California Tough Mudder 2014
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 29, 2014
    Los Angeles California Tough Mudder 2014
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • March 29, 2014
    Spring Break at the Lake Irvine Lake Mud Run 2014
    Oak Canyon Park, Silverado, CA, United States
      Learn More
  • March 23, 2014
    Central California (CenCal) Mud Factor 2014
    Hobb’s Grove, Sanger, CA, United States
      Learn More
  • March 22, 2014
    SoCal California The Zombie Run 2014
    USA Paintball, Acton, CA, United States
    Save $15 on your The Zombie Run with code MRG15 Learn More
  • March 22, 2014
    Los Angeles California LoziLu Women’s Mud Run 2014
    Rose Bowl, Pasadena, CA, United States
      Learn More
  • March 22, 2014
    Northern California NorCal #1 Dirty Girl Mud Run 2014
    Sacramento Raceway, Sacramento, CA, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • March 15, 2014
    San Jose California Hit and Run 5K 2014
    Santa Clara County Fairgrounds, San Jose, CA, United States
      Learn More
  • March 15, 2014
    Sacramento California (NorCal) The Zombie Run 2014
    Sacramento Raceway, Sacramento, CA, United States
    Save $15 on your The Zombie Run with code MRG15 Learn More
  • March 15, 2014
    SoCal California Bad Ass America Race 2014
    Vail Lake Resort, South Temecula, CA, United States
      Learn More
  • February 23, 2014
    Los Angeles California (SoCal) Atlas Race 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Atlas Race with code MRG25 Learn More
  • February 22, 2014
    Los Angeles California (SoCal) Atlas Race 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 25% on your Atlas Race with code MRG25 Learn More
  • January 26, 2014
    SoCal Vail Lake Spartan Race Spartan Sprint 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 25, 2014
    SoCal California Spartan Race Super Spartan 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 25, 2014
    SoCal Vail Lake Spartan Race Spartan Sprint 2014
    Vail Lake Resort, South Temecula, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 21, 2013
    Pomona California Escape The Nightmares 2013
    Pomona Fairgrounds, Pomona, CA, United States
      Learn More
  • December 14, 2013
    Los Angeles California Ruckus Obstacle Race 2013
    Stubhub Center, Carson, CA, United States
    Save $10 on your Ruckus Obstacle Race Series with code MRG2013 Learn More
  • December 08, 2013
    Malibu California Spartan Race Spartan Sprint 2013
    Calamigos Ranch, Malibu, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 07, 2013
    Malibu California Spartan Race Spartan Sprint 2013
    Calamigos Ranch, Malibu, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 24, 2013
    San Francisco California Men’s Health Urbanathlon 2013
    TBA San Francisco, San Francisco, CA, United States
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  • November 16, 2013
    Los Angeles California Terrain Mud Run 2013
    Frank G. Bonelli Regional Park, San Dimas, CA, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • November 09, 2013
    San Diego California Tough Mudder 2013
    Tough Mudder San Diego, san diego, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • November 09, 2013
    Temecula California Kiss Me Dirty 2013
    Lake Skinner Recreation Area, Winchester, CA, United States
    Save $5 on your Kiss Me Dirty with code MRG Learn More
  • November 02, 2013
    San Francisco California Ultimate Towner 2013
    Treasure Island Great Lawn, San Francisco, CA, United States
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  • November 02, 2013
    Ventura / Greater LA California Dirty Girl Mud Run 2013
    USA Paintball, Acton, CA, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • October 27, 2013
    Healdsburg California Russian River Mud Run Fall 2013
    Rio Lindo Adventist Academy, Healdsburg, CA, United States
    Save $10 on your Russian River Mud Run with code MUDRUNGUIDE Learn More
  • October 27, 2013
    Sacramento California Merrell Down & Dirty Obstacle Race 2013
    Folsom Lake State Recreation Area, Granite Bay, CA, United States
      Learn More
  • October 26, 2013
    Sacramento California Capitol Apocalypse 5k Zombie Run 2013
    Sutter’s Landing Park, Sacramento, CA, United States
      Learn More
  • October 26, 2013
    Los Angeles California Muddy Buddy 2013
    Frank G. Bonelli Regional Park, San Dimas, CA, United States
      Learn More
  • October 26, 2013
    San Luis Obispo California Mud Mash 2013
    Laguna Lake Park, San Luis Obispo, CA, United States
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  • October 26, 2013
    East Bay California Dirty Girl Mud Run 2013
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • October 26, 2013
    NorCal California Warrior Dash 2013
    Yolo Land & Cattle Co., Esparto, CA, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • October 26, 2013
    Sacramento California Spartan Race Spartan Beast 2013
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 19, 2013
    Sacramento California Woodland Mud Run 2013
    Woodland Christian High School, Woodland, CA, United States
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  • October 13, 2013
    Riverside California Popeye Energy Battle Challenge Mud Run 2013
    Milestone Motocross Park, Riverside, CA, United States
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  • October 12, 2013
    California That Dam Mud Run at Santa Fe Dam 2013
    Santa Fe Dam, Irwindale, CA, United States
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  • October 12, 2013
    Riverside California Popeye Energy Battle Challenge Mud Run 2013
    Milestone Motocross Park, Riverside, CA, United States
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  • October 12, 2013
    SoCal California Rugged Maniac 2013
    Vail Lake Resort, South Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • October 05, 2013
    Temecula California Fustercluck 5k 2013
    Vail Lake Resort, South Temecula, CA, United States
    Save 50% on your Fustercluck with code MRG50 Learn More
  • September 28, 2013
    San Jose California Muddy Buddy 2013
    Joseph D. Grant Regional Park, San Jose, CA, United States
      Learn More
  • September 28, 2013
    Tahoe California Tough Mudder Fall 2013
    TBA 2 hour drive from Tahoe, CA, Tahoe, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • September 28, 2013
    Pasadena California The Gladiator Rock’n Run 2013
    Rose Bowl, Pasadena, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • September 28, 2013
    SoCal Los Angeles California Zombie Run For Your Lives 2013
    Glen Helen Raceway, San Bernardino, CA, United States
    Save $5 on your Run For Your Lives with code RFYL13 Learn More
  • September 08, 2013
    San Francisco California Scavenger Dash 2013
    The Chieftain, San Francisco, CA, United States
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  • September 07, 2013
    Sacramento California 5K Foam Fest 2013
    River Front Motor Cross Park, Marysville, CA, United States
    Save $5 on your 5K Foam Fest with code SACFOAM Learn More
  • September 07, 2013
    Sacramento California Scavenger Dash 2013
    Pizza Rock, Sacramento, CA, United States
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  • August 24, 2013
    Apple Valley California Rockin’ the Desert Mud Run 2013
    Horsemans Center Park, Apple Valley , CA, United States
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  • August 17, 2013
    Los Angeles California Zombie Blood Run 2013
    Santa Anita Park, Arcadia, CA, United States
    Save $10 on your Zombie Blood Run with code MRG10 Learn More
  • August 17, 2013
    Los Angeles Southern California 5K Foam Fest 2013
    L.A. Fairplex, Pomona, CA, United States
    Save $5 on your 5K Foam Fest with code MRG2014 Learn More
  • August 17, 2013
    NorCal California Muddy Mama 2013
    Placer County Fairgrounds, Roseville, CA, United States
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  • August 10, 2013
    Monterey NorCal Spartan Race Spartan Beast 2013
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • July 27, 2013
    SoCal San Diego California Muddy Mama 2013
    Storm Stadium, Lake Elsinore, CA, United States
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  • July 20, 2013
    NorCal California Rugged Maniac 2013
    Murieta Equestrian Center, Rancho Murieta, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • July 13, 2013
    Orange County California R.O.C. Ridiculous Obstacle Challenge Race 5K 2013
    Orange County Great Park, Irvine, CA, United States
      Learn More
  • July 13, 2013
    Tahoe California Tough Mudder Summer 2013
    TBA 2 hour drive from Tahoe, CA, Tahoe, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • June 29, 2013
    Sacramento California Pretty Muddy Women’s Mud Run 2013
    Granite Park, Sacramento, CA, United States
    Save $10 on your Pretty Muddy with code MRG10 Learn More
  • June 29, 2013
    San Diego California The Gladiator Rock’n Run 2013
    Barona Oaks Motorcross Park, Lakeside, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • June 22, 2013
    California Irvine Lake Summer of Mud 2013
    Oak Canyon Park, Silverado, CA, United States
      Learn More
  • June 16, 2013
    San Jose California The Gladiator Rock’n Run 2013
    Joseph D. Grant Regional Park, San Jose, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More
  • June 16, 2013
    San Diego California Alpha Warrior 2013
    Qualcomm Stadium, San Diego, CA, United States
    Save $10 on your Alpha Warrior with code MUDRUNGUIDE Learn More
  • June 15, 2013
    San Jose California The Gladiator Rock’n Run 2013
    Joseph D. Grant Regional Park, San Jose, CA, United States
    Save 15% on your Gladiator Rock n Run with code MRG2018 Learn More