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 20 exciting races across the region. Find your next race in California below and join the running community at these great events!
January 2026
A Trifecta weekend at Lake Perris featuring 5 km, 10 km and 21 km obstacle races set on a flat, fast course in a mountain-rimmed park; includes a kids race, obstacle workshop, and spectator options.
March 2026
Muddy Dash in Lake Elsinore on March 14, 2026 is a playful few mile mud run with a dozen Muddy Moments and waist deep pits. Costumes encouraged and a fun post race festival awaits.
Conquer mud and iconic obstacles like Funky Monkey and Mud Mile at Tough Mudder Los Angeles on March 21 and 22 2026 at Lake Elsinore Raceway. Choose 5 to 8 km or 15 plus km courses or race multiple laps for extra challenge.
Tough Mudder Los Angeles at Lake Elsinore Raceway offers rugged trail courses and bold obstacles from a 5 to 8 km scramble to a 15 plus km challenge. Finishers earn a medal and shirt, with Infinity, spectator and group options.
Get muddy and make memories at Muddy Dash in Irvine on March 28, 2026 at Oak Canyon Park. Tackle an obstacle course with mud pits then celebrate at the lively post race festival with medals, music and family friendly fun.
April 2026
A two day obstacle race weekend at Woodward Reservoir near Oakdale with Sprint, Super, Beast, Ultra and kids races on a flat course set in a large park and reservoir area.
The San Diego Spartan Event Weekend at Pala Fox Raceway on Apr 18-19, 2026 features obstacle races including a Sprint 5 km with 20 obstacles and a Super 10 km with 25 obstacles. Spectator tickets, bag check and a post race festival are available.
NorCal DEKA FIT is a two-day arena fitness race in Sacramento featuring the DEKA FIT format: 5 km across 10 zones with an average time around 50 minutes. Registered athletes can sign up for a 60-minute Athlete Judge volunteer shift.
Get dirty at Mud Factor Fresno, a 5K mud and obstacle run at Hobb's Grove in Sanger on April 26, 2026. Family friendly waves for adults and kids make this a fun, messy day of obstacles, photos and festival vibes.
May 2026
Jump into the San Diego Muddy Dash on May 2 at Bates Nut Farm for a playful, noncompetitive course with a dozen mud obstacles and pits up to waist deep. Costume friendly with a fun post race party and VIP upgrades.
A two day Spartan Trifecta Weekend at Big Bear Mountain Resort featuring Sprint, Super and Beast obstacle races at high altitude. The course reaches about 8,200 feet and includes long climbs and descents over 1,200 feet.
A weekend of Spartan obstacle races at Toro Park near Salinas, California, featuring a Sprint 5 km, a Super 10 km, and kids races amid wooded trails and coastal views. Spectators, bag check, parking, team starts, and service member discounts are avai..
August 2026
Conquer scenic trails, cold river crossings and Spartan obstacles at the 2026 NorCal Spartan Weekend, Aug 29 to 30 at Mahon Ranch in Elk Grove. Choose Sprint, Super or Kids races, join as a team or volunteer for a weekend of muddy fun.
September 2026
Conquer high altitude trails at Bear Mountain with Tough Mudder Big Bear, featuring rugged 10K and 5K courses with icons like Funky Monkey and Block Ness Monster. Finishers get swag, a shirt and a post race drink in Mudder Village.
Take on the Spartan Stadion at Angel Stadium of Anaheim, a 5 km course using bleachers and obstacles on the field for a unique high energy challenge. Family friendly with a kids race plus team and volunteer options to save on entry.
Tackle rugged trails and course obstacles at the Temecula Spartan weekend, Sep 26 to 27, 2026, at Lake Elsinore Raceway. Choose Sprint, Super, Kids races or Hurricane Heat and soak up Southern California sun by the lake.
October 2026
Bring your pup to Ruff Run California, a playful obstacle course on 20 acres with over 20 mud and water challenges that test teamwork and strategy. Enjoy a lively after party with music, games and vendors in the high desert.
November 2026
An outdoor obstacle race at Oak Canyon Park on November 21, 2026 featuring a roughly 5K course with 15+ obstacles, a kids Mini Monkey course, packet pickup the day before, festival amenities, and possible cash parking.