Trail Running Calendar California 2026-2027

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.

On April 18, 2026 Outlands offers 25K, 50K and 50 mile trail courses near Pilot Hill, CA along Folsom Lake with runnable singletrack, steady climbs and stocked aid stations.

Leona Divide is a multi-distance trail event in Lake Hughes, CA on April 18, 2026, featuring 100 mile, 100k, 50 mile, 50k and 30k races. The 100 mile and 100k serve as Western States 100 qualifiers with published qualifying times.

Experience an all terrain 5K trail race at BackCountry Gardens featuring hills, streams, and mud. Enjoy a competitive or fun run followed by a beer mile and wine tasting at San Diego’s only certified sustainable winery.

Experience the hills of Del Valle Regional Park in Livermore with a flat 5K or hilly 10K and half marathon. All participants receive a custom medal and t-shirt with professional chip timing included for all distances.

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.

A coastal trail race in Mendocino, CA at the 50K distance featuring river, redwood and ocean sections with a finish on the bluffs above Mendocino Village; registration closes March 31.

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.

Coastal trail racing at Point Mugu State Park with a 13.4 mile half marathon and a 6.9 mile 10k featuring ocean view switchbacks, finisher medals, free race photos, a 21 plus beer garden and post race amenities.

Experience the coastal beauty of the Bay Area Ridge Trail with distances ranging from a 50 yard dash to a 50K ultramarathon. Runners enjoy expansive views of the Pacific Ocean and the Santa Cruz Mountains.

Experience an out and back dirt path trail run starting at the Porterville Military Academy. This community event offers 10K, 5K, and kids distances with finisher medals, chip timing, and support for local aviation scholarships.

Run through the beautiful trails of Trione Annadel State Park in Santa Rosa. This eco friendly event offers a half marathon, 10K, and 5K to support local park conservation and stewardship.

Experience a technical trail race through the scenic parks of San Carlos. Choose from four distances including a 15K long course and a dedicated kids run to support local trail maintenance.

Trail races in Huddart County Park and Purisima Creek Redwoods on April 18, 2026 offering 10K, half, 35K and 50K across technical single-track and fire roads, with chip timing, cupless aid stations, and significant elevation gain.

Experience a scenic 14.5 mile trail run along the Bullards Bar Reservoir in Camptonville. This fundraiser for the Wildland Firefighter Foundation features single track trails and support from the local fire community.

Join a free, inclusive community trail run on the beautiful Marin Headlands trails. Choose from short, medium, or long unmarked courses and enjoy a post-run meal with giveaways from key running brands. The event fosters connection before th..

Experience the majestic Solomon Hills during this trail event featuring a scenic five mile loop with 900 feet of elevation. Choose between 5, 10, or 15 mile distances starting from the historic Newlove Picnic Grounds in Orcutt.

Trail races in the Sierra Azul Open Space Preserve near Mt. Umunhum, offering distances from 5K to 50K on out and back routes. Courses are marked with pink ribbons and supported by staffed aid stations with drop bag service for longer event..

A community trail event in Mariposa on April 19, 2026, with 5K and 12K courses starting at the historic courthouse. Aid stations and Search and Rescue support are provided, and children under 18 may participate for free.