Trail Running calendar near Livermore 2026-2027

Navigate the redwood forests and meadows of Santa Cruz in this 2 or 4 hour map based adventure scramble. Explore the wilds in teams of up to five while hunting for 20 unique checkpoints.

The Falcon Crest Winter Trail Challenge will take place in El Dorado Hills on Saturday 14 November 2026. You can run between 5 and 42 kilometers.

Timed running events at Jacob Myers Community Park on November 21, 2026 let runners see how many miles they can complete in set durations. Options include two, four, six and eight hour races on a loop just under one mile.

Celebrate Thanksgiving at Hellyer County Park with a trail race along Coyote Creek. Choose from a USATF certified half marathon, 10K, or 5K while competing for a chance to win a turkey.

Thanksgiving Day 5K and 10K plus a short Little Turkeys kids race at Point Pinole Regional Shoreline Park with a food drive and virtual options.

A Thanksgiving Day 5K and 1 mile event at San Leandro Marina with canicross teams, kids races, and proceeds benefiting animal welfare; the course is flat with mixed surfaces and free parking is available.

Quad Dipsea in Mill Valley, CA is a 28.4 mile out-and-back trail race with about 9,000 feet of ascent, stairs and technical trails. The route reaches Stinson Beach and is run twice, with aid stations and enforced cutoffs.

Quarry Turkey at Quarry Lakes Regional Park on November 28, 2026 offers a mostly flat half marathon, 10K, 5K and a free kids sprint, with costume fun and food bank support.

A seasonal cross country event in San Francisco on 12/6/2026 with live and virtual options. Distances include a 5K, 10K, and a nine mile course; all entrants receive race swag and there is a pre race bib and shirt pickup with Brewfest.

The Calero Trail Run - Winter will take place in Gold Creek on Saturday 5 December 2026. You can run between 5 and 50 kilometers.

Trail races of 30K, half marathon and 10K at China Camp State Park near San Rafael, with chip timing, cupless aid stations, and bay and Mt. Tam views.

An urban single loop starting at Twin Peaks that offers 50K and 50 mile routes. The fat ass style event uses volunteer aid from parked cars and includes a 4 hour 45 minute cutoff at mile 25.

Trail races through redwood groves in Sanborn Regional Park on December 12, 2026 with 5K, 10K and half marathon options, chip timing and finisher medals.

A loop course around Angel Island with panoramic San Francisco views. Options include a half marathon of two laps and a single loop 10K, limited to 400 participants and with ferry fees included in race pricing.

Trail running in Woodside, CA with 10K, half, 35K and 50K courses through redwoods and varied single track terrain.

Trail races at Lake Chabot on December 31, 2026 include a half marathon, 10K and 5K with hikers and walkers welcome.

New Year's Day races at Lake Chabot in Castro Valley on January 1, 2027, offering a half marathon, 10K and 5K with trail sections and volunteer-supported services.

The Hacienda Hills Trail Run - Winter will take place in Gold Creek on Saturday 2 January 2027. You can run between 5 and 50 kilometers.

Join a community run and walk along the scenic trails of the Tuolumne River Regional Parkway in Modesto. Support the Sole Support Sponsorship Program while completing a 5K course alongside friends and family.

A trail race in Huddart Park near Woodside CA on January 17, 2027 offering distances from an 8K to a 50K plus a free kids 50 yard dash. Courses run through redwoods, are well marked, and feature stocked aid stations.