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 07, 2021
    Fresno California EPIC Series Obstacle Challenge Fit Camp Weekend 2021
    China Peak Mountain Resort, Lakeshore, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • August 07, 2021
    Tejon Ranch Los Angeles California Tough Mudder Classic 10 Mile & 5K 2021
    Tejon Ranch, Lebec, CA, United States
      Learn More
  • August 08, 2021
    Fresno California EPIC Series Obstacle Challenge Fit Camp Weekend 2021
    China Peak Mountain Resort, Lakeshore, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • August 08, 2021
    Tejon Ranch Los Angeles California Tough Mudder Classic 10 Mile & 5K 2021
    Tejon Ranch, Lebec, CA, United States
      Learn More
  • August 21, 2021
    Wrightwood California Grit OCR: Mountain High 2021
    Mountain High East Resort, Wrightwood, CA, United States
    Save 15% on your Grit OCR with code MRG15 Learn More
  • August 21, 2021
    Monterey California Spartan Race Spartan Super 10K 2021
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 22, 2021
    Monterey California Spartan Race Spartan Sprint 5K 2021
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 28, 2021
    Sonoma California Tough Mudder Classic 10 Mile & 5K 2021
    Sonoma Raceway, Sonoma, CA, United States
      Learn More
  • August 29, 2021
    Sonoma California Tough Mudder Classic 10 Mile & 5K 2021
    Sonoma Raceway, Sonoma, CA, United States
      Learn More
  • September 11, 2021
    Redding California Sunrise Rotary Mud Run 2021
    Nash Ranch, Redding, CA, United States
      Learn More
  • September 25, 2021
    Lake Tahoe California Spartan Race Spartan Ultra Beast 50K 2021
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 25, 2021
    Lake Tahoe California Spartan Race North American Championships Spartan Beast 2021
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 26, 2021
    Lake Tahoe California Spartan Race Spartan Beast 21K 2021
    Squaw Valley, Olympic Valley, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 26, 2021
    Auburn California The Great Auburn Obstacle Race 2021
    Auburn Regional Park, Auburn, CA, United States
      Learn More
  • October 09, 2021
    Sacramento California Dirty Kid Obstacle Race 2021
    Maple Neighborhood Center, Sacramento, CA, United States
      Learn More
  • October 16, 2021
    San Francisco California Rugged Maniac 2021
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • October 16, 2021
    Big Bear California Spartan Race Trifecta Weekend Spartan Ultra Beast 50K 2021
    Big Bear Lake, Big Bear Lake, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 16, 2021
    Big Bear California Spartan Race Trifecta Weekend Spartan Beast 21K 2021
    Big Bear Lake, Big Bear Lake, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 17, 2021
    Big Bear California Spartan Race Trifecta Weekend Spartan Super 10K 2021
    Big Bear Lake, Big Bear Lake, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 17, 2021
    Big Bear California Spartan Race Trifecta Weekend Spartan Sprint 5K 2021
    Big Bear Lake, Big Bear Lake, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 23, 2021
    Glen Helen Los Angeles California Tough Mudder Classic 10 Mile & 5K 2021
    Glen Helen Raceway, San Bernardino, CA, United States
      Learn More
  • October 24, 2021
    Glen Helen Los Angeles California Tough Mudder Classic 10 Mile & 5K 2021
    Glen Helen Raceway, San Bernardino, CA, United States
      Learn More
  • November 13, 2021
    Sacramento California Spartan Race Spartan Super 10K 2021
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 14, 2021
    Sacramento California Spartan Race Spartan Sprint 5K 2021
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 20, 2021
    SoCal Temecula California Rugged Maniac Fall 2021
    Temecula Galway Downs, Temecula, CA, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • November 20, 2021
    San Diego California EPIC Series Obstacle Challenge The Fit Expo 2021
    The FIT Expo, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • November 20, 2021
    SoCal California Spartan Race Spartan Ultra Beast 50K 2021
    Tejon Ranch, Lebec, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 20, 2021
    SoCal California Spartan Race Spartan Beast 21K 2021
    Tejon Ranch, Lebec, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 21, 2021
    San Diego California EPIC Series Obstacle Challenge The Fit Expo 2021
    The FIT Expo, San Diego, CA, United States
    Save 10% on your EPIC Series with code MRG10 Learn More
  • November 21, 2021
    SoCal California Spartan Race Spartan Super 10K 2021
    Tejon Ranch, Lebec, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 21, 2021
    SoCal California Spartan Race Spartan Sprint 5K 2021
    Tejon Ranch, Lebec, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • November 21, 2021
    Simi Valley California Muddy Warriors Xperience 2021
    Corriganville Park, Simi Valley, CA, United States
      Learn More
  • December 04, 2021
    San Francisco California Spartan Race Spartan Stadion 5K Oracle Park Stadium 2021
    Oracle Park, San Francisco, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 11, 2021
    Los Angeles California Spartan Race Spartan Sprint 5K 2021
    TBA 2 hour drive from Los Angeles, CA, Los Angeles, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • December 12, 2021
    Los Angeles California Spartan Race Spartan Sprint 5K 2021
    TBA 2 hour drive from Los Angeles, CA, Los Angeles, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 29, 2022
    SoCal California Spartan Race Spartan Super 10K 2022
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • January 30, 2022
    SoCal California Spartan Race Spartan Sprint 5K 2022
    Glen Helen Raceway, San Bernardino, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • February 26, 2022
    Valley Center California Rad Dogs Mud Run 2022
    Bates Nut Farm, Valley ‍‍‍Center, CA, United States
      Learn More
  • March 19, 2022
    San Luis Obispo California Spartan Race Spartan Ultra Beast 50K 2022
    Santa Margarita Ranch, Santa Margarita, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • March 19, 2022
    San Luis Obispo California Spartan Race Spartan Beast 21K 2022
    Santa Margarita Ranch, Santa Margarita, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • March 20, 2022
    San Luis Obispo California Spartan Race Spartan Super 10K 2022
    Santa Margarita Ranch, Santa Margarita, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 07, 2022
    Anderson California Shasta Mud Run 2022
    Historic Hawes Farms, Anderson, CA, United States
    Save 15% on your Shasta Mud Run with code MRG15 Learn More

Browse our list of previous mud runs, mud races & obstalce races for California (CA)

Know of an event we're missing? Let us know and we'll get it added. It's completely free!

Don't forget, you can always use our handy Worldwide Mud Run Finder to search for an event using our interactive map!