Trail Running calendar near San Ramon 2026-2027

Trail races from 10K to 50K around Mt Tamalpais, held at Stinson Beach with technical trails, significant climb, cupless aid stations, and chip timing.

Experience a flat and fast trail race through the scenic Quarry Lakes Regional Recreation Area in Fremont. Choose from a USATF certified half marathon, 10K, or 5K while enjoying views along the Alameda Creek Trail.

A map-based 2- or 4-hour team scramble through Santa Cruz redwoods and meadows with timed checkpoints and on-site timing chips.

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.

Trail races on the Stanislaus River Trail in Ripon, CA offering 5K, 10K and a half marathon with shirts, medals and age-group awards on November 14, 2026.

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.

The San Francisco Turkey Trot will take place in Lincoln Park-Lobos on Thursday 26 November 2026. You can run between 3 and 5 miles.

A 28.4 mile Mill Valley trail race with about 9,000 feet of climbing, steep stairs and named trail sections on the Dipsea Trail, out and back then repeated to complete the distance.

Quarry Turkey in Fremont features a mostly-flat half marathon, 10K, 5K and a short kids run on November 28, 2026, combined with a food drive for Alameda County Food Bank.

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.

Trail running at Calero County Park near San Jose on Dec 5, 2026, offering distances from a kids run to a 50K with marked courses and aid stations.

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.

Single-loop urban ultramarathon in San Francisco from Twin Peaks offering 50 mile and 50K options, informal aid stations, and a mile 25 cutoff.

The Oakland Cubs Back2School 5K will take place in Piedmont on Sunday 6 December 2026. You can run 5 kilometers.

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 scenic half marathon and 10K circumnavigating Angel Island, with mandatory ferry access, a 400 participant limit, and panoramic views of San Francisco.

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