Trail Running Calendar California 2026-2027

A trail event at Los Coyotes Reservation on October 23-24, 2026 offering a 3.1-mile Yellow Loop and timed 6H and 24H ultra options across desert and alpine trails, with on-site camping, food trucks, and festival amenities.

A team trail relay at Los Coyotes Reservation on October 23-24, 2026 covering 112.8 miles and 23,800 feet elevation gain with camping and village amenities.

A trail event at Wildwood Canyon State Park featuring a timed 8 hour loop format and a single-loop 6K, with aid stations, vendors, morning live music, and an afterparty at a local brewery.

A remote, informal backcountry foot run at Oxbow Reservoir, CA offering three route options with substantial elevation gain and multiple water crossings. Registration closes Oct 22 at 11:59 PM PT.

No Name Trail Races in Agoura, CA on October 24, 2026 feature trail courses through Chesebro Canyon, including a 50K, a 14.1-mile half-marathon, and a 3.6-mile 5k, with aid stations, finisher medals and post-race refreshments.

Multi-distance trail races on the Gaviota Coast feature ocean and valley views on October 24 and 25, 2026. Distances range from 12 km to 100 miles and courses include aid stations and on-course EMT support.

Experience the autumn scenery of Jenkinson Lake at the Trail Run at Sly Park. This event offers distances from a 5K to a 50K ultra on shaded pine forest trails with rolling hills and lakeside views.

A trail event at Acorn Creek Trailhead near Pilot Hill, CA featuring a 10K single lap and a two-lap half marathon across singletrack, creek crossings, and overlooks. The race is limited to 175 runners and benefits the American River Conserv..

A trail race in Bothe-Napa Valley State Park on October 24, 2026 offering Marathon, Half Marathon, 10K and 5K. The single-track course features hills, stream crossings and narrow sections, and the field is limited to 300 runners.

Oakland Hills Trail Run features 10K, half marathon and 35K courses through Redwood Regional Park with technical trails, marked routes, aid stations and chip timing. The event is cupless and limited to 330 runners.

A rugged half marathon on Santa Cruz Island featuring oak canyons, five creek crossings, steep climbs and exposed ridge running. Organized by Ventura County Sheriff’s Search and Rescue, proceeds benefit SAR charities and entry includes boat..

The Womens Headlands Half Marathon will take place in Mill Valley on Saturday 24 October 2026. You can run 14 miles.

A multi-distance trail event at Lake Perris featuring a 200 mile race with over 44,000 feet of elevation gain, looped courses, on-course aid stations, group camping, and cash prizes for top finishers.

Trail races at Caspers Wilderness Park in San Juan Capistrano across multiple distances including 10k, half marathon, 35k, marathon and 50k. The event features marked courses, aid stations and participant merchandise.

Celebrate Halloween with a trail race through San Jose Hellyer County Park. Choose from distances including 5K 10K Half Marathon and Marathon with costume prizes and certified courses.

A Halloween trail event at Crystal Cove State Park offering 6 hour and 4 hour timed options, organized by Sunshine Trail Racing. Registration is on UltraSignup and closes October 28.

Trail races in Almaden Quicksilver Park from 5K to 50K over hilly dirt roads and single-track, with two staffed aid stations, drop-bag service for longer distances, and a finisher medal for all participants.

Trail running in the Pine Creek Wilderness on a wide dirt fire road with an out and back layout. The course climbs to a turnaround and returns downhill, with a 10 km option and parking at Horsethief Canyon Trailhead.

Support student programs and the Oakland Tech Cross Country team at Joaquin Miller Park. Choose between a five kilometer trail race or a one mile fun run through the redwood trees.

A fully off road trail run in Bakersfield in November 2026 with three route options from roughly 6 to 26 miles. The event includes aid stations, meals, swag and timing for top finishers.