California
California Obstacle Race Calendar 2025-2026
Explore the best obstacle runs in California for 2025-2026! Our updated list features 17 exciting races across the region. Find your next race in California below and join the running community at these great events!
October 2025
Run with your dog at Ruff Run California 2025, a 4ishK obstacle course with more than 20 mud and water challenges that test teamwork. New course features, a custom jersey and a lively after party round out the day.
Take on a 3 mile Boot Camp Challenge at MCRD San Diego with tunnel crawls, climbing walls and Marines cheering you on. Enjoy live music, vendors, K9 demos and a beer garden at the family friendly festival.
San Bernardino County Sheriff's Mud Run, hosted by the Sheriff’s Athletic Federation, takes place in San Bernardino, California, at 18901 Institution Road (ZIP 92407). The event offers three options: a 5K mud run for individuals, a 1K Kids Race, and..
November 2025
Challenge vineyards, valleys and a fossilized oyster bed at the Central California Spartan Race at Santa Margarita Ranch for a rugged, fun obstacle experience. Choose Sprint to Ultra or a kids race, enjoy festival vibes and earn hard won finisher gea..
January 2026
Take on SoCal Spartan Weekend at Lake Perris on Jan 24 to 25 with Sprint, Super, Beast and Kids races over fast off road terrain and iconic obstacles. Finishers get medals and tees amid lakeside camping and festival vibes.
March 2026
Tough Mudder Los Angeles brings muddy obstacle fun to Lake Elsinore Raceway on March 21 and 22 2026, with 15K and shorter courses plus an Infinity lap option. Expect rugged trails, big team challenges, a finisher medal and festival vibes for spectato..
Push your limits at DEKA FIT in Anaheim's Convention Center, a fast paced 10 zone fitness challenge with short runs between stations that test strength, speed, and endurance. Multiple intensity heats make it perfect for newcomers and competitors alik..
Tough Mudder Los Angeles takes over Lake Elsinore Raceway March 21 and 22, 2026 with challenging 15K and 5K courses packed with obstacles and rugged single track. Expect mud, medals, a finisher shirt and a cold beer to toast your grit.
April 2026
Tackle Spartan obstacles and scenic trails at Woodward Reservoir during San Jose Spartan Weekend on April 4 and 5, 2026 in Oakdale. Choose distances from a 5 km sprint to a 50 km ultra and earn a finisher tee, medal and festival access.
San Diego Spartan Event Weekend unfolds at Pala Fox Raceway in Pala, California. The weekend offers three races: Sprint 5K with 20 obstacles, Super 10K with 25 obstacles, and a Kids Race 1–3 km. The course combines flat, fast sections with rocky terr..
Challenge yourself at DEKA FIT in Sacramento Apr 25-26, 2026 at the SAFE Credit Union Convention Center. This 5 km course mixes 10 functional training zones with 500 m runs between stations, plus DEKA Ultra, multiple heats and finisher swag from $70.
Event details
Mud Factor Fresno is a 5k mud and obstacle run scheduled for April 26, 2026, at Hobb's Grove, 14265 E. Goodfellow Ave., Sanger, California. The event is described as an all-ages format with separate Adult waves and KIDZ Family waves. Th..
May 2026
Tackle Spartan races at Big Bear Mountain Resort with Sprint Super and Beast options across rugged trails and epic descents. Complete a Trifecta, enjoy festival vibes, and chase national spots and World Championship qualification.
Tackle rugged coastal trails and classic Spartan obstacles at the Monterey Spartan Race in Toro Park near Salinas, CA on May 30 and 31, 2026. Sprint, Super and kids races plus rolling hills, ocean views and a lively festival atmosphere.
August 2026
NorCal Spartan Event Weekend takes place at Mahon Ranch in Elk Grove, just outside Sacramento. The event offers multiple race distances: a Sprint 5K with 20 obstacles, a Super 10K with 25 obstacles, and a Kids Race 1–3 km with obstacles, on Aug 29–30..
September 2026
Conquer rugged trails and lakefront terrain at the Temecula Spartan weekend in Lake Elsinore. Choose Sprint, Super or Kids races packed with classic obstacles, festival vibes and finisher swag for a high energy challenge and spectator fun.
October 2026
