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 22 exciting races across the region. Find your next race in California below and join the running community at these great events!
August 2026
Operation YOSEMITE 2026 is an in-person trail event in Mono County, California on August 8, 2026, offering four distances from 6 to 22 miles with a 20 lb dry load and specified elevation gains.
Two days of mud and obstacles in Moorpark on a 5K course with 15 major obstacles, rinse stations, and a Basecamp area with food trucks, vendors and music.
A two-day Spartan obstacle race at Mahon Ranch near Sacramento featuring Sprint 5 km, Super 10 km, kids races, team entries, volunteer options and spectator access.
September 2026
Tough Mudder Big Bear on September 12 2026 at Bear Mountain offers 5K and 10K obstacle courses, finisher items, Mudder Village passes, and group packages.
A 5 km Stadion obstacle race with 20 obstacles at Angel Stadium on September 12, 2026, plus a 1-1.5 km kids race and spectator access.
An outdoor mud obstacle run near Redding, CA, with a just-under 5 km course through fields, hills and creek crossings. The family-oriented event includes vendors, children's activities, food, drinks and event swag.
Inaugural Black Oak Challenge in Tuolumne features a 5K with physical and mental obstacles plus a 1 mile family run with water challenges.
An obstacle course race weekend at Lake Elsinore Raceway with Sprint, Super, kids races, Hurricane Heat events, and spectator access on Sep 26-27, 2026.
October 2026
Annual mud run in San Bernardino with a 5K for individuals and teams and a 1K kids race on October 10, 2026.
Ruff Run California on 10/17/2026 in Phelan, CA presents a 20 acre obstacle course for people and their dogs with over 20 obstacles, 4K and 1K options, and an after party with music, games and vendors.
November 2026
Obstacle course weekend at Santa Margarita Ranch with Sprint, Super, Beast, Ultra, kids races and a pre-race obstacle workshop.
A multi-day obstacle race weekend at Santa Margarita Ranch with Sprint, Super, Beast, Ultra and kids races through vineyards and forested hills.
An obstacle and mud-focused 5K at Oak Canyon Park in Irvine on Nov 21, 2026, featuring mud pits, walls, ropes, a festival village, and packet pickup the day before.
January 2027
Two days of obstacle racing at Lake Perris with Sprint 5 km, Super 10 km, Beast 21 km and kids races on a flat, fast course with mountain views.
March 2027
Obstacle event at Lake Elsinore Raceway on March 20, 2027 offering a 15+ km course, a 5 to 8 km option, multiple obstacles and a Mudder Village festival.
A mud and obstacle event at Lake Elsinore Raceway on March 20, 2027 offering 15K and 5 to 8K courses, an Infinity multi lap option, spectator access and group packages, with finisher medal, shirt, headband and drink included.
April 2027
Obstacle course weekend with races from 5 km to 50 km, held April 3 and 4 2027 at Modesto Reservoir Regional Park near Waterford CA.
Obstacle course weekend at Pala Fox Raceway with Sprint 5 km, Super 10 km, kids races, spectator options and on-site festival.
A 5K obstacle run at Hobb's Grove in Sanger, California on April 25, 2027, with Adult and KIDZ Family waves. Waivers and photo ID are required and spectators pay a cash fee for festival area access.
May 2027
A Spartan obstacle-course weekend at Big Bear Mountain Resort with Sprint, Super, Beast and kids races at about 8,200 feet and the chance to earn a Trifecta.