Trail Running calendar near Livermore 2026-2027

A trail event at Huddart Park in Woodside on November 7, 2026 featuring multiple distances including a six hour loop challenge, a kids dash for ages six to twelve, and a virtual run option.

Experience a scenic trail run around the Lake Chabot reservoir and hills. With distances from a 50 yard kids dash to a 50K ultramarathon there is an option for everyone at this Castro Valley event.

Trail races in Stinson Beach on November 7, 2026 with 10K, half marathon, 30K and 50K that climb Mt. Tam and return to the beach. Aid stations provide food and hydration and the event is limited to 500 runners.

A fall trail event at Rancho Cañada del Oro Open Space Preserve offering distances from 5K to 50K on hilly single-track and dirt roads, with aid stations, multiple water stops, strict cutoff limits, and limited parking.

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.

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.

A multi-distance trail event in the El Dorado Hills foothills offering routes from 5K to a trail marathon on mostly single-track dirt with rolling hills, aid stations, drop-bag service, and a creek crossing.

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.

A Thanksgiving Day event at Point Pinole Regional Shoreline Park offering 5K, 10K and a short Little Turkeys kids run, with a food drive, costume encouragement, virtual options and a connector medal opportunity for participating in a second..

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.

A family-friendly Thanksgiving weekend event at Quarry Lakes Regional Park offering a fast, mostly-flat half marathon, 10K, 5K and a free kids' sprint. The race supports the Alameda County Community 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.

A multi-distance trail event at Calero County Park in San Jose featuring single-track, hills and varied terrain. Aid stations, drop-bag service for the 50K, free parking and support access at Rancho Cañada del Oro are provided.

Peacock Gap Trail Run at China Camp State Park on December 5, 2026 offers 10K, half and 30K trail courses with marked single track and fire roads, chip timing, aid stations, and a cupless water policy.

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 at Sanborn Regional Park with a half marathon, 10K and 5K. Routes use single track trails and chip timing, and walkers and hikers are welcome.

A point to point half marathon on the Southside Trail at Folsom Lake featuring mostly single track, an overall ascent of 1,683 ft, multiple aid stations and a 4.5 hour time limit, starting at Salmon Falls and finishing at Brown’s Ravine.

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.