California
California Obstacle Race Calendar 2026-2027
Monthly updates for California
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Explore the best obstacle runs in California for 2026-2027! Our updated list features 20 exciting races across the region. Find your next race in California below and join the running community at these great events!
March 2026
Tough Mudder Los Angeles returns to the Lake Elsinore Raceway for a day of obstacles and mud. Choose from 5K, 15K, or the multi-lap Infinity challenge on winding trails. Finishers earn a medal, shirt, headband, and a celebratory drink.
Tough Mudder takes place at Lake Elsinore Raceway on March 21, 2026. Participants can choose from 15K or 5K routes with multiple obstacles. Finishers receive exclusive medals, gear, and a drink.
Experience a mud filled obstacle course at Oak Canyon Park in Irvine. Join the community for a day of mud pits and festival celebrations while supporting local charities through the Buy One Give One program.
April 2026
Experience an obstacle course weekend at Woodward Reservoir Regional Park near San Jose. Choose from distances ranging from a 5k Sprint to a 50k Ultra on a flat course designed for personal performance.
The Sludge Trudge 5K is a paved run/walk at North Natomas Regional Park. It's a sanctioned event with professional timing and awards for top finishers. The event is hosted for a specific community group and their guests.
Experience an obstacle course challenge at the Pala Fox Raceway featuring 5K and 10K distances. Navigate mud pits and motocross tracks in the scenic Pala Valley with options for adults, teams, and children.
The Mud Factor Fresno obstacle course run returns to Hobb's Grove in Sanger. This all-ages event features a 5k course with mud and obstacles. Separate family and adult waves are offered.
May 2026
Experience a fun mud filled course at Bates Nut Farm featuring waist deep mud pits and a dozen unique obstacles. This untimed event is perfect for those looking to run crawl and slide through the mud followed by a post race party.
Experience high altitude obstacle racing at Big Bear Mountain Resort featuring steep climbs and over 1200 feet of descent. Conquer the Sprint, Super, or Beast distances to earn your Trifecta qualification in the San Bernardino National Forest.
Experience an obstacle course race through the rolling hills and wooded trails of Toro Park. Choose from 5K and 10K distances or bring the family for kids races at this scenic Northern California venue near Monterey Bay.
August 2026
Experience an endurance event at Silver Lake with four distance options ranging from 6 to 22 miles. Carry a 20lb load through the scenic terrain of Mono County while navigating significant elevation gains.
Experience obstacle course racing at Mahon Ranch with 5K and 10K distances featuring signature Spartan obstacles. Join a weekend of trail running and river crossings in the scenic Northern California farmland near Sacramento.
September 2026
Take on the rugged mountain challenge at Tough Mudder Big Bear. This obstacle course event features 5K and 10K distances with iconic obstacles like The Block Ness Monster. Participants earn a finisher medal, shirt, headband, and a celebratory drink.
Experience an obstacle course race inside Angel Stadium. Navigate a 5 km course with 20 obstacles and stadium bleachers or participate in the dedicated kids race at this historic Anaheim ballpark.
Experience an obstacle course through the fields and hills of Redding. This family friendly mud run features creek crossings and physical structures to navigate while supporting local children in need.
Experience rugged trail racing at Lake Elsinore Raceway with 5K and 10K obstacle courses. This event weekend features mud and open terrain alongside endurance challenges and dedicated races for kids.
October 2026
An obstacle event in Phelan, California where people and their dogs navigate a 20 acre course with over 20 obstacles, including mud, water and problem solving. The program also offers a 1k walk/run and a volunteer option.
November 2026
Experience an obstacle course race through scenic California vineyards and national forests. Choose from distances ranging from 5K to 50K at this festive weekend featuring rugged trails and vibrant fall colors.
Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.
January 2027
Experience an obstacle course race in a mountain rimmed valley at Lake Perris. Choose from 5K, 10K, or 21K distances on a flat and fast course within the rugged wilderness of the Greater Los Angeles area.