California
California Obstacle Race Calendar 2026-2027
Monthly updates for California
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in California for 2026-2027! Our updated list features 21 exciting races across the region. Find your next race in California below and join the running community at these great events!
April 2026
Mud Factor Fresno is a 5k mud run at Hobb's Grove in Sanger, CA on April 26, 2026. The all ages event runs Adult and KIDZ family waves; participants must bring a signed waiver and adults must show a photo ID.
May 2026
Experience a fun mud filled course at Bates Nut Farm featuring waist deep mud pits and a dozen unique obstacles. This untimed event is perfect for those looking to run crawl and slide through the mud followed by a post race party.
A two-day Spartan Trifecta Weekend at Big Bear Mountain Resort featuring Sprint, Super and Beast obstacle races at high altitude with long climbs and descents; kids races and spectator access are also available.
Mud Factor Sacramento is a 5K mud and obstacle run at the 300 acre Mahon Ranch in Elk Grove on May 17, 2026. The event includes adult and KIDZ family waves, a festival area with paid spectator access, and required signed waivers.
A Spartan obstacle weekend at Toro Park near Salinas on May 30 and 31 2026, featuring a Sprint 5 km with 20 obstacles and a Super 10 km with 25 obstacles. The course runs through wooded trails, rolling hills and coastal views.
August 2026
Experience an endurance event at Silver Lake with four distance options ranging from 6 to 22 miles. Carry a 20lb load through the scenic terrain of Mono County while navigating significant elevation gains.
Obstacle race weekend at Mahon Ranch near Elk Grove on Aug 29-30, 2026 with Sprint, Super and Kids races, team entry options, and service member discounts.
September 2026
An obstacle event at Bear Mountain on September 12, 2026 offering 5K and 10K courses, named obstacles, spectator and group options, finisher items, and volunteer and VIP experiences.
A Stadion 5 km obstacle race with 20 obstacles at Angel Stadium of Anaheim on September 12, 2026, plus a kids race and spectator options; the Stadion shows an average duration of about 1 hour 32 minutes and a 4.8 rating from 40 testimonials.
Experience an obstacle course through the fields and hills of Redding. This family friendly mud run features creek crossings and physical structures to navigate while supporting local children in need.
A Spartan obstacle weekend at Lake Elsinore Raceway features Sprint 5K, Super 10K, kids races, and multi-hour Hurricane Heat events on rugged, open terrain near a large natural freshwater lake.
October 2026
A loop-based endurance event on Malibu's Chumash Trail with a 3-mile loop and about 1,250 ft gain per loop. It offers two divisions including X HEAVY with escalating weight and uses the motto "Every loop heavier. Every loop harder. Only one leaves wi..
An obstacle event in Phelan, California where people and their dogs navigate a 20 acre course with over 20 obstacles, including mud, water and problem solving. The program also offers a 1k walk/run and a volunteer option.
November 2026
A two day Spartan Trifecta Weekend at Santa Margarita Ranch featuring trail obstacle races from a 5 km Sprint to a 50 km Ultra. Courses run through vineyards and forest scenery with options for kids, workshops and spectators.
A two-day Spartan Trifecta weekend at Santa Margarita Ranch near Los Padres National Forest features Sprint, Super, Beast and a 50K Ultra across vineyard and hill terrain, plus kids races, an obstacle workshop and spectator access.
Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.
January 2027
Lake Perris hosts a Spartan obstacle weekend Jan 23–24, 2027 with 5 km, 10 km, 21 km and kids races across a flat, fast course by the lake. Team entries, spectator access, volunteer options and service member discounts are available.
March 2027
An obstacle mud run at Lake Elsinore Raceway on March 20, 2027 offering multiple course options, finisher rewards, spectator access, and volunteer and group opportunities.
April 2027
Multi-distance Spartan obstacle weekend in Stanislaus County, CA on April 3-4, 2027. Options range from a 5 km sprint to a 50 km ultra, plus a kids race, across trail terrain with signature obstacles.