California
California Obstacle Race Calendar 2025-2026
Explore the best obstacle runs in California for 2025-2026! 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!
September 2025
At the Angel Stadium of Anaheim in Orange County, the 2025 Spartan Stadion Weekend features a Stadion 5K obstacle course with 20 challenges inside the iconic ballpark. The fast, intense course runs yo..
Temecula Spartan Event Weekend unfolds at Lake Elsinore Raceway in Lake Elsinore, California—just up the I-15 from Temecula. The brand-new venue hosts Sprint (5K) with 20 obstacles, Super (10K) with 2..
October 2025
Mammoth Spartan Trifecta Weekend in Mammoth Lakes, California, invites athletes to tackle high-altitude obstacle course racing in the Sierra Nevada. The event features three Spartan distances on cours..
SEB Mud Run is set for October 4, 2025, in Castaic, California. The event offers two course options: a 4 Mile Mud Obstacle Run and a 1 Mile Muddy Kids Run. The race location is 26893 Tapia Canyon Road..
Get ready for the inaugural Spartan 10K Super World Championship Weekend at Mammoth Mountain Ski Area in Mammoth Lakes, California. This high-altitude challenge sits at 7,900 feet and features a 10K c..
Ruff Run California is an annual obstacle run held in Phelan, CA, set in the scenic high desert at 4,200 feet elevation. The event features a 4ishK course with over 20 obstacles that challenge partici..
The MCRD San Diego Boot Camp Challenge is a festival and a 3-mile race held at Marine Corps Recruit Depot San Diego, 3800 Chosin Ave, San Diego, CA. The course uses the Marine Corps recruit training..
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:..
November 2025
The 2025 SLO CAL Spartan Trifecta Weekend takes place at Santa Margarita Ranch in Santa Margarita, California, in San Luis Obispo County. The event offers four distance options: Sprint 5K with 20 obst..
January 2026
SoCal Spartan Race Weekend at Lake Perris State Recreation Area in Perris, CA, January 24–25, 2026. This early-season Trifecta Weekend offers Sprint (5K, 20 obstacles), Super (10K, 25 obstacles), Beas..
March 2026
Tough Mudder Los Angeles returns to Lake Elsinore, California, on March 21–22, 2026, at Lake Elsinore Raceway (20700 Cereal St). The two-day event offers multiple formats: 15+ kilometers, 5–8 kilomete..
2026 SoCal DEKA FIT takes place March 21–22 at the Anaheim Convention Center in Anaheim, California. The race is a 5K hybrid fitness challenge built from ten DEKA Zones, each preceded by 500 meters of..
April 2026
San Jose Spartan Trifecta Weekend is staged at Woodward Reservoir Regional Park near Oakdale, California, on April 4–5, 2026. The event offers four race options aligning with Spartan’s Trifecta: Sprin..
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 c..
NorCal DEKA FIT returns to Sacramento’s Safe Credit Union Convention Center for two epic days of fitness racing in the DEKA FIT Arena. The 5K course pairs ten functional training zones with a 500-mete..
May 2026
Big Bear Lake, California hosts the Spartan Trifecta Weekend at Big Bear Mountain Resort (Snow Summit). The event features Sprint (5K, 20 obstacles), Super (10K, 25 obstacles), and Beast (21K, 30 obst..
Monterey Spartan Event Weekend takes place at Toro Park, six miles from downtown Salinas, in California’s Monterey region. The 2026 edition offers a Sprint 5K with 20 obstacles and a Super 10K with 25..
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, a..
