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 19 exciting races across the region. Find your next race in California below and join the running community at these great events!
May 2026
A weekend of Spartan obstacle races at Big Bear Mountain Resort featuring Sprint, Super and Beast distances at high altitude, with steep climbs and course maps subject to change.
Mud Factor Sacramento is a 5K mud and obstacle run on May 17, 2026 at the 300-acre Mahon Ranch, marking the event's 15th anniversary; it features adult and KIDZ family waves and a $10 spectator festival pass.
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.
June 2026
A family friendly 5K mud run at Barona Oaks Motocross Park in San Diego on June 6, 2026. The course features mud pits, obstacles, and slides and the day includes a Pre Party and an After Party with music and food trucks.
August 2026
An outdoor fitness event at Silver Lake near June Lake on August 8, 2026, offering four distance options and a required 20 lb dry load. Elevation gains are provided for each course.
Obstacle-course weekend at Mahon Ranch near Elk Grove on Aug 29-30, 2026, featuring Sprint (5 km), Super (10 km), a kids race, spectator access, team entries, and service member discounts.
September 2026
An obstacle course event at Bear Mountain on September 12, 2026 with 5K and 10K options featuring multiple named obstacles. Finishers receive medals, a shirt, a headband, and a finisher drink while spectator and group options are available.
A Stadion 5 km obstacle race at Angel Stadium of Anaheim on September 12, 2026, featuring 20 obstacles, a kids race and spectator access inside the ballpark. Ticketed entries and race day services are listed for participants and visitors.
A family-oriented mud run in Redding on September 12, 2026 featuring a course just under 5 km with obstacles, creek crossings, vendors, food, and children's activities. The event supports the Active 20-30 Club of Redding.
A weekend of Spartan obstacle races at Lake Elsinore Raceway featuring Sprint and Super distances, kids races, and multi-hour Hurricane Heats on rugged trails beside Lake Elsinore.
October 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
A Spartan race weekend at Santa Margarita Ranch offering obstacle races from a 5 km Sprint to a 50 km Ultra, plus kids races and an obstacle workshop, set among vineyards and forested terrain.
A Spartan Trifecta Weekend at Santa Margarita Ranch with Sprint, Super, Beast and a 50K Ultra across vineyard and forest terrain, plus kids races, an obstacle workshop, spectator access and a multi-race Trifecta Pass.
A mud and obstacle focused 5K at Oak Canyon Park in Irvine on November 21, 2026, featuring mud pits, walls, ropes, monkey bars and a festival area with vendors and food.
January 2027
A Spartan Race weekend at Lake Perris State Recreation Area on Jan 23 and 24, 2027 features 5K, 10K and 21K obstacle races plus a kids race. The course is described as flat and fast with lakeside views and park facilities.
March 2027
Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway blends winding single-track and arid ridges with waterlogged mud obstacles. Event formats include 15+ km and 5 to 8 km courses, an Infinity multi-lap option, and spectator access.
Tough Mudder Los Angeles at Lake Elsinore Raceway on March 20, 2027 offers multiple course options including a 15K with 20 plus obstacles, a shorter 5 to 8 kilometer course, Infinity laps, spectator access, and group packages.
April 2027
A weekend obstacle course event at Stanislaus County Parks offering multiple races from a kids run to a 50 km ultra, with technical trail sections and signature obstacles across grasslands and hills.
San Diego Spartan Event Weekend at Pala Fox Raceway on April 10 and 11, 2027 features a 5 km Sprint, a 10 km Super, kids races, spectator access, and a post-race festival with mud pits and rope climbs.