California
California Obstacle Race Calendar 2025-2026
Monthly updates for California
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in California for 2025-2026! Our updated list features 19 exciting races across the region. Find your next race in California below and join the running community at these great events!
January 2026
Take on the SoCal Spartan Trifecta Weekend Jan 24 to 25 2026 at scenic Lake Perris, featuring flat fast courses perfect for chasing personal bests and camping on site. Choose Sprint, Super or Beast distances and join an Obstacle Specialist Workshop o..
February 2026
Run the Stadion course at Dodger Stadium on February 21, 2026, weaving through historic bleachers and concourses with 20 thrilling obstacles over 5 km. Family friendly with a kids race and GovX verified discounts for service members.
March 2026
Get muddy at the Lake Elsinore Muddy Dash, a few miles of mud pits and a dozen playful obstacles that have you running, crawling, wading and sliding in a non competitive, fun run. Costumes welcome and a lively post race festival caps the day.
Conquer mud and iconic obstacles like Funky Monkey and Mud Mile at Tough Mudder Los Angeles on March 21 and 22 2026 at Lake Elsinore Raceway. Choose 5 to 8 km or 15 plus km courses or race multiple laps for extra challenge.
Take on SoCal DEKA FIT & Ultra in Anaheim on Mar 21 22 2026, a 5 km hybrid race across 10 dynamic fitness zones. Tickets start at $59 and volunteers can earn race credit; service members and first responders get verified discounts.
Tough Mudder Los Angeles is March 21 and 22 at Lake Elsinore Raceway, featuring winding single track trails and rugged outdoor obstacles. Choose Infinity, 5K or 15K, earn finisher swag and enjoy Mudder Village food, music and a free drink.
April 2026
Join the 2026 San Jose Spartan Trifecta Weekend Apr 4 to 5 at scenic Woodward Reservoir Park for flat, fast courses and obstacle racing across two action packed days. Choose Sprint, Super, Beast, Ultra or Kids and race solo or with a team.
Tackle rugged trails, mud pits, rope climbs and motocross terrain at the San Diego Spartan Race on April 18 and 19 at Pala Fox Raceway. Choose Sprint, Super or Kids courses and celebrate your finish at a lively festival style gathering.
Take on NorCal DEKA FIT & Ultra in Sacramento, April 25 to 26, 2026, at the SAFE Credit Union Convention Center. Race an indoor 5 km DEKA FIT arena with 10 fitness zones and weekend formats for both DEKA FIT and Ultra competitors.
Get muddy and conquer obstacles at the 5K Mud Run at Hobb's Grove in Sanger on April 26, 2026. Open to all ages with Adult and KIDZ Family waves, this lively festival offers pro photos and big fun for the whole crew.
May 2026
Get dirty at Muddy Dash San Diego on May 2 at Bates Nut Farm, a few miles of muddy obstacles where you can run, crawl, wade and slide. Costumes welcome and a lively post race festival caps off the fun for all ages.
Tackle three Spartan obstacle races in one epic Trifecta Weekend at Snow Summit, Big Bear Lake. Race high at 8,200 feet with rugged climbs and earn your spot at the 2026 Trifecta World Championship.
Join the Monterey Spartan weekend at Toro Park on May 30 and 31, 2026 for obstacle course races and Spartan Trail runs set among wooded rolling hills with coastal views. Expect climbs, sprints and fun obstacles for all ages.
August 2026
Join the NorCal Spartan Weekend on Aug 29 and 30, 2026 at Mahon Ranch in Elk Grove for rugged trails, cold river crossings and Spartan style obstacles across multiple distances. Team entries and first responder discounts available.
September 2026
Conquer Tough Mudder Big Bear at Bear Mountain with high altitude 5K and 10K courses featuring obstacles like Block Ness Monster and Funky Monkey. Finishers get a medal, shirt, headband and a celebratory drink.
Take on the Stadion obstacle course inside Angel Stadium on Sept 12, racing up and down bleachers and through stadium obstacles. Kids races, team entries and service member discounts make this a great outing for runners and families.
Take on rugged trails beside Southern California's largest natural freshwater lake at the Temecula Spartan Weekend. Sprint, Super, kids races and 4 or 12 hour Heat options, plus team entries and discounts for military and first responders.
October 2026
Bring your pup to Ruff Run California, a playful obstacle course on 20 acres with over 20 mud and water challenges that test teamwork and strategy. Enjoy a lively after party with music, games and vendors in the high desert.
November 2026
Get muddy and conquer 15+ obstacles at Terrain Race Irvine on November 21, 2026 at Oak Canyon Park. Choose a 5K challenge or bring the kids for the Mini Monkey and celebrate afterward with food, music and a festival atmosphere.