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
  • December 05, 2020
    San Francisco California Spartan Race Spartan Stadion 5K 2020
    TBA San Francisco, San Francisco, CA, United States
     Save 10% on your Spartan Race with code MRG10 Learn More
  • December 12, 2020
    Los Angeles California Spartan Race Spartan Sprint 5K 2020
    Castaic Lake State Recreation Area, Castaic, CA, United States
     Save 10% on your Spartan Race with code MRG10 Learn More
  • December 13, 2020
    Los Angeles California Spartan Race Spartan Sprint 5K 2020
    Castaic Lake State Recreation Area, Castaic, CA, United States
     Save 10% on your Spartan Race with code MRG10 Learn More
  • May 08, 2021
    Redding California Shasta Mud Run 2020
    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!