Trail Running calendar near Downtown San Jose 2026-2027

Take on twisty dirt trails and big climbs around Montara Mountain at San Pedro Valley Park. Choose 10K, half marathon or 30K with aid stations, cupless racing and finisher medals for all.

A two day trail event in San Francisco that crosses the Golden Gate Bridge and runs the Marin Headlands. Multiple distances from 15K to 50 mile are offered and the event serves as the final stop of the Spartan Trail World Championship.

Runs at Coyote Hills Regional Park in Fremont, California on January 31, 2026. Courses include a half marathon, 10K and 5K over dirt, pavement and marsh boardwalks with bay views.

Test your legs on scenic Sierra Azul trails at Mt Umunhum Trail Conquest Winter, with distances from a kids run to 50K and routes that summit Mt Umunhum and Bald Mountain. Finishers earn commemorative medals and aid stations keep you fueled..

Trail races at Fort Ord National Monument offering 10K, 25K and 50K routes with marked trails, aid stations, cupless service, live timing, and awards for finishers.

A 50.7-mile trail ultramarathon at Fort Ord National Monument near Monterey, CA, run as a 35-mile plus 15-mile loop with varied terrain, staffed aid stations, drop-bag access, cupless support, and live timing.

Run the stunning coastal trails around Rodeo Beach at the Golden Gate Trail Run, with distances from 8K to 50K to suit all levels. Expect rugged singletrack, stocked aid stations, generous finisher medals, and unforgettable views.

Join the JW House Hope Run in Los Gatos for scenic 5K and 10K routes around Vasona Lake, perfect for runners, walkers and strollers. Proceeds support JW House to help keep families together during medical emergencies.

Scenic races at San Leandro Marina on February 14, 2026, with half marathon, 10K, 5K and a remote runner option. The mostly flat bayside course stays close to the water and offers views of San Francisco and the Bay.

Trail races at Lake Chabot on February 21, 2026, from 5K to 50K across dirt trails, fire roads and some pavement, timed with disposable chips. Aid stations are stocked and the event is cupless so runners carry their own bottles or cups.

Trail races from 10K up to 50K plus a free kids 50 yard dash at San Pedro Valley Park in Pacifica on February 21, 2026. Routes run mostly single track with marked ribbons, stocked aid stations and a cupless policy.

Join the Wild Goose Chase at Lime Ridge in Walnut Creek for a map based trail adventure through oaks, quarries, and rock labyrinths. Choose 5K or 10K and navigate an unmarked course to find checkpoints, then enjoy post race treats.

Tackle scenic, hilly trails on Angel Island in Tiburon with 5, 10, and 15 mile courses plus a free 50 yard kids run for ages 6 and under. Expect single track climbs, stunning views, ferry access, medals and stocked aid stations.

Skyline Ridge Trail Run and Hike in La Honda CA offers 50K, 21K and 10K routes across scenic ridges and forests, with hikers welcome on the shorter courses. This fundraiser sends 100% of entry fees to Bay Area Ridge Trail; register by Mar 6..

A long distance trail race on March 14, 2026 in the Marin Headlands and Mount Tamalpais offering 50 mile and 50K routes with significant elevation, live timing, aid stations, drop bag support, and cash prizes for top 50 mile finishers.

Challenge yourself on the scenic, technical trails of China Camp State Park with 5K, 10K and Half Marathon options March 13 to 16, 2026. Live and virtual entries available with registration price rising after Dec 31, 2025.

Trail running event in Marinwood, California offering 50K, 100K and 28K courses that reach many of Marin County's high points. Courses run on Freetrail home trails with views across the San Francisco Bay Area.

Run peaceful redwood trails in Oakland with distances from a kids 50 yard dash to 50K ultras, plus family friendly 5K and marathon options. Enjoy scenic singletrack, stocked aid stations and springtime forest views.

Join the Lag Bon 10K trail run in Fairfax on March 22 to celebrate World Water Day and support Evidence Action's Safe Water Now program. Limited to 100 runners, the technical 10K features stairs, roots and muddy singletrack and runs rain or..

Scenic half marathon in La Honda at Skyline Ridge, with runnable single track and fireroad through woods and hills offering ocean and bay views. Proceeds benefit The Hatuey Project and entry fees are matched to double the gift.