Trail Running calendar near Big Bear 2026-2027

A trail race near Silverado CA offering a 17 Miler, a half marathon and a 10K with significant elevation gain. Courses follow Maple Springs Road and truck trails and include multiple aid stations and shuttle logistics.

Experience the trails of Crystal Cove State Park with a 6K or 10 mile run or hike. Enjoy views of the Pacific Ocean and receive a finisher medal and event shirt as you navigate the terrain of El Moro Canyon.

A free, social, non-competitive trail run at El Moro and Laguna Coast Wilderness Park in Newport Beach on April 4, 2026. The route is about 5 miles with roughly 500 feet of climbing and includes post-run snacks and a raffle.

A two day trail and gravel event at Diamond Valley Lake near Hemet offering distances from a 1 mile kids run to a 26.2 mile trail marathon, plus stroller, youth and multi lap gravel rides around the lake.

Step back in time for a totally tubular run in Huntington Beach. This 80s themed event features a 5K, 10K, and Half Marathon on a flat, scenic oceanfront course. After the race, enjoy a costume contest, a beach party with a live DJ, and an..

The Run4Kids Ultra Running Party features a wide range of distances and timed events, from a half marathon to a 24-hour ultra. The event raises funds for youth running programs. It takes place in Corona, California.

Experience an 81 mile team ultra run from the desert floor to Palomar Mountain. Run together in teams of two or three through extreme elevation changes and diverse California terrain within a 28 hour limit.

Trail races on the Soboba Indian Reservation support Noli Indian School. Choose from marathon, half marathon, 5k, or a kids' 3k walk/run. The event features Native and Open divisions, with proceeds funding a student scholarship.

Experience an obstacle course challenge at the Pala Fox Raceway featuring 5K and 10K distances. Navigate mud pits and motocross tracks in the scenic Pala Valley with options for adults, teams, and children.

A looped trail event at Lake Perris on April 25, 2026, offering 10K, 50K and 100K distances with lap-based aid, cut-off times, permitted pacers for the 100K, and included group tent camping and event amenities.

Test your speed and navigation skills in this unsanctioned 4+ mile race through Chino Hills. Navigate four checkpoints across gravel and trail terrain to compete for cash prizes in a format where you choose your own route.

A 13.5-mile trail race on fire roads and single track in Limestone Canyon with 2,719 feet of elevation gain, two aid stations, cupless policy, and limited packet pickup options.

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.

Experience the scenic trails of Crystal Cove State Park in this coastal run featuring 50K, 25K, and 5K distances to support the John Wayne Cancer Foundation.

Experience high altitude obstacle racing at Big Bear Mountain Resort featuring steep climbs and over 1200 feet of descent. Conquer the Sprint, Super, or Beast distances to earn your Trifecta qualification in the San Bernardino National Fore..

Trail races at O'Neill Park in Trabuco Canyon offer five distances from 10k to 50k. Registration closes May 1 and entries are non refundable but may be rolled over if cancellation is due to weather or fire.

Experience high altitude trail running at Big Bear Mountain Resort with a scenic 10k course. Run through pine forests and technical singletrack while enjoying expansive views of the Southern Sierra.

A multi-distance ultrarun at a private ranch in Riverside on May 23 to 24, 2026, offering 3, 6, 12, 24 hour, 24 hour relay and 100 mile options. Flat 1 mile dirt and grass loop with free camping and on course support.

A mountain trail race in Sierra Madre on May 23, 2026 featuring an 8.6 mile out-and-back course from Kersting Court to Orchard Camp, a Kids Fun Run, and community-led trail repair efforts supported by the Fletcher Trail Maintenance Fund.

Return to Hahamongna Watershed Park on May 24, 2026 for a day of team relays and solo challenges. Choose a 50 km relay with teams of up to five, a solo 50 km ultra, or a 10 km fun run amid scenic Pasadena trails.