California
California Obstacle Race Calendar 2025-2026
Explore the best obstacle runs in California for 2025-2026! Our updated list features 22 exciting races across the region. Find your next race in California below and join the running community at these great events!
September 2025
Tough Mudder Big Bear takes place in Big Bear Lake, California (Bear Mountain venue at 43101 Goldmine Dr). The weekend event offers two courses: a 5K with 12+ obstacles and a 10K with 20 obstacles. Th..
The In-N-Out Burger Tough Mudder Challenge is a dynamic obstacle course event held at Bear Mountain Resort in Big Bear Lake, California. Scheduled for September 5–7, 2025, it features two race distanc..
The Nash Ranch Mud Run, held in Redding, California, is a family-friendly 5K obstacle race featuring mud, creek crossings, hills, and various structures to climb over and crawl under. Organized by the..
Tehachapi Mud Run 5K is a mud-themed running event in Tehachapi, California. The race covers a 5K distance and is scheduled for Saturday, September 13, 2025, at 22630 Woodford-Tehachapi Rd (ZIP 93561)..
The Angel Stadium Spartan Stadion Weekend, held at the iconic Angel Stadium of Anaheim, California, features a challenging 5K obstacle course with 20 unique obstacles. Participants navigate the histor..
The Temecula Spartan Event Weekend, held at Lake Elsinore Raceway in California, offers a scenic obstacle course race along the shores of Lake Elsinore with stunning water views and rolling terrain. P..
October 2025
The Mammoth Spartan Trifecta Weekend, held in Mammoth Lakes, California, is a high-altitude obstacle course racing event set at 7,900 feet in the Sierra Nevada Mountains. Taking place over October 4-5..
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..
The Mammoth Spartan Super World Championship Weekend, held at Mammoth Mountain Ski Area in California, is a premier obstacle course race set at a challenging high altitude of 7,900 feet in the Sierra..
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..
Located at Marine Corps Recruit Depot San Diego, the Boot Camp Challenge is a 3-mile obstacle run open to the public for a day. Participants navigate course obstacles while being cheered on by more th..
November 2025
The SLO CAL Spartan Trifecta Weekend, held at Santa Margarita Ranch in California, offers a challenging obstacle course experience set amidst scenic vineyards and the Los Padres National Forest. Parti..
January 2026
The SoCal Spartan Event Weekend, held at Lake Perris State Recreation Area in Perris, California, offers a challenging obstacle course race experience with scenic mountain views. Participants can choo..
March 2026
Tough Mudder Los Angeles, held at Glen Helen Raceway in San Bernardino near the San Bernardino Mountains, is a challenging obstacle course event scheduled for March 21-22, 2026. Participants can choos..
The SoCal DEKA FIT event, held at the Anaheim Convention Center in California, is a dynamic hybrid fitness challenge featuring a 5K course divided into 10 functional training zones. Each zone is prece..
April 2026
The San Jose Spartan Trifecta Weekend, held at Woodward Reservoir Regional Park near San Jose, California, offers a challenging obstacle course experience across multiple race distances. Participants..
The San Diego Spartan Event Weekend, held at Pala Fox Raceway in California, offers a thrilling obstacle course racing experience set against the scenic Pala Valley. Featuring a Sprint 5K with 20 chal..
May 2026
The Big Bear Spartan Trifecta Weekend, held at Big Bear Mountain Resort in California, is a challenging obstacle course event set at a high altitude of 8,200 feet. Participants face steep climbs and t..
