Trail Running Calendar California 2026-2027

Trail races in April 2026 at Del Valle Regional Park offering Half Marathon, 10K and 5K distances with electronic chip timing. Finisher medals and t shirts are provided and walkers and hikers are welcome.

This trail running event on the Soboba Indian Reservation features a Marathon, Half Marathon, 5k, and Kids 3k. Courses include varied terrain with significant elevation gain. Proceeds support Noli Indian School scholarships.

A 50K trail run along Northern California's Mendocino Coast, featuring river crossings, redwood forest sections and waterfalls. The course finishes on the Mendocino Village bluffs with views over the Pacific Ocean.

Point Mugu Trail Run in Malibu features a 13.3 mile half and a 6.9 mile 10k with ocean view switchbacks and a steep Fireline climb. The event includes a finisher medal, free course photos and post race food and a beer garden.

Trail race at Skyline Ridge Open Space Preserve on April 18, 2026 offering distances from a kids 50 yard dash to a 50K. Routes run mostly on the Bay Area Ridge Trail with marked aid stations and a cupless hydration policy.

A community trail event at Porterville Military Academy offering 5K, 10K, a kids 1/4 mile and virtual 5K/10K options, free race shirts and medals, age-group prizes, and support for the local EAA chapter.

A community fundraiser at Spring Lake Regional Park on April 18, 2026 featuring a half marathon, 10K and 5K. The low-waste event donates a portion of proceeds to Trione-Annadel State Park and includes a medal, shirt and post-race snacks.

A trail running event in San Carlos on April 18, 2026 offering 1K kids, 5K, 10K and a new 15K with substantial climbing through Big Canyon Eaton and Pulgas Ridge. Festival atmosphere at Crestview Park with timed results and awards.

Trail races through Huddart County Park and Purisima Creek Redwoods on April 18, 2026, offering 10K, half, 35K and 50K courses with chip timing and marked aid stations. The event is limited to 450 runners and is a cupless format.

A 14.5 mile trail run near Bullards Bar Reservoir in Camptonville, CA, hosted by the Tahoe Hotshots. Proceeds go to the Wildland Firefighter Foundation and the course features three stocked aid stations plus a taco truck at the finish.

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.

A chip timed 5k at CASS Winery in Paso Robles on April 19 2026 that runs through the winery grounds and includes race swag, a wine pour for eligible participants, virtual options, and age group awards.

Trail races around Auburn, California, across the Western States Trail with four distances from 25 km to 161 km; the 100K awards Western States Golden Tickets and the event qualifies for UTMB World Series Finals.

Trail race on Mt Tamalpais with a Half Marathon and 10K on coastal ridge single-track and road, limited to 300 participants, with aid stations, course markings, and participant t-shirts.

A looped trail event at Lake Perris offering 10k, 50k and 100k with significant elevation gain, aid stations, group camping, and double-challenge buckles.

Trail races at Victory Trailhead offer distances from 6K to a new 100K on rugged trails with full aid, a cupless policy, course markings, drop bag service for longer races, and post race food and medals.

Join the SJVDHA for their annual Pacing for Prevention 5K, supporting oral cancer research. Walk or run a paved, scenic trail that welcomes strollers and dogs. Connect with health professionals and participate in wellness activities.

Tackle the Shadow Strike Unsanctioned Run in Chino Hills, a 4+ mile all terrain challenge across trails, gravel and open streets. No clocks, just navigation to checkpoints and cash prizes for top finishers and random participants.

Trail races held inside Marshall Gold Discovery State Historic Park near Coloma offer distances from a kids run to a half marathon. Courses mix singletrack, switchbacks and paved sections, with marked routes, aid stations and on-course mars..

Trail running in the Sierra Nevada foothills on April 25, 2026, with 10K, 15K and 30K options over rocky single track and fire roads. The finish area includes food, drinks and race swag.