San Francisco, California Obstacle Races & Mud Runs

A complete list, guide & calendar of obstacle races, ocrs, and mud runs in San Francisco, California


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From Wine Country to Fisherman's Wharf, we've got NorCal covered with the 2015 OCR race discounts you need!

Yeah, so you've got the beauty of Napa Valley and Sonoma. The eclectic wonderland of the Bay Area and San Fran… so what? Redwoods, museums, some of the best food on the planet… and then Lake Tahoe too? OK, you win, you win – Northern California rules.
We can't compete with your awesomeness, so we're just going to leave this here, when you're in the mood to get muddy, check these out!

Not exactly what you were looking for? Well, check out our directory by country, US states, major cities worldwide, or just view upcoming obstacles races 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.

  • Race discount More info
  • September 21, 2019
    Redding California Mud Mash at the Nash Ranch 2019
    Nash Ranch, Redding, CA, United States
      Learn More
  • September 22, 2019
    Auburn California Great Auburn Obstacle Race 2019
    Auburn Regional Park, Auburn, CA, United States
      Learn More
  • September 28, 2019
    Save 50% with a Spartan Pass! Learn More
  • September 28, 2019
    Save 50% with a Spartan Pass! Learn More
  • September 29, 2019
    Save 50% with a Spartan Pass! Learn More
  • October 05, 2019
    NorCal California Tough Mudder Classic & 5K 2019
    Sonoma Raceway, Sonoma, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • October 06, 2019
    NorCal California Tough Mudder Classic & 5K 2019
    Sonoma Raceway, Sonoma, CA, United States
    Save 25% on your Tough Mudder with code MRG2019 Learn More
  • October 19, 2019
    Sacramento California Rugged Maniac 2019
    Murieta Equestrian Center, Rancho Murieta, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • October 27, 2019
    San Luis Obispo California SLO Ultra 2019
    Lopez Lake Arroyo Grande, Arroyo Grande, CA, United States
      Learn More
  • November 16, 2019
    Sacramento California Spartan Race Spartan Super 2019
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • November 16, 2019
    Solano California Mud Factor 2019
    Argyll MX, Dixon, CA, United States
      Learn More
  • November 17, 2019
    Sacramento California Spartan Race Spartan Sprint 2019
    Van Vleck Ranch, Rancho Murieta, CA, United States
    Save 50% with a Spartan Pass! Learn More
  • November 23, 2019
    Save 50% with a Spartan Pass! Learn More
  • November 24, 2019
    Save 50% with a Spartan Pass! Learn More
  • February 15, 2020
    San Jose California Spartan Race Spartan Super 2020
    Diablo Grande, Patterson, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • February 16, 2020
    San Jose California Spartan Race Spartan Sprint 2020
    Diablo Grande, Patterson, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • April 25, 2020
    San Francisco California Rugged Maniac 2020
    Alameda County Fairgrounds, Pleasanton, CA, United States
    Save $5 on your Rugged Maniac with code MRG19 Learn More
  • May 31, 2020
    San Jose California Muddy Princess 2020
    Joseph D. Grant Regional Park, San Jose, CA, United States
      Learn More
  • June 06, 2020
    Monterey California Spartan Race Spartan Super 2020
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • June 07, 2020
    Monterey California Spartan Race Spartan Sprint 2020
    Toro Park, Salinas, CA, United States
    Save 10% on your Spartan Race with code MRG10 Learn More

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!