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Trail Running Calendar near Livermore 2026-2027

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Explore the top trail runs near Livermore for 2026-2027! We've gathered 38 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2026
Trail races at Redwood Regional Park offering 35K, half and 10K options on technical dirt trails with marked courses, chip timing, cupless aid stations, and limited field size.
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.
November 2026
A fundraiser in Joaquin Miller Park featuring a 5 km trail race and a 1 mile fun run to support Oakland Tech PTSA and student programs.
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.
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.
Nomadic Adventure Club's 11th annual 5K trail run at Arbolado Park in Walnut Creek with family activities and Mongolian food after the event.
A Thanksgiving Day vegan fundraiser at San Leandro Marina featuring a flat 5K, canicross with dogs, a 1 mile walk, and kids races supporting the Milo Foundation.
Quarry Turkey in Fremont offers a half marathon, 10K, 5K and a virtual race over Thanksgiving weekend, plus a Little Turkeys kids race and a food drive.
December 2026
Trail races from a kids run to a 50K at Calero County Park in San Jose with varied single track, multiple aid stations, free parking, and drop bag support for the 50K.
Youth focused event in Oakland with a 1 mile kids fun run and a 5K trail run at Joaquin Miller Park, with limited parking and packet pickup before the race.
Trail races at Lake Chabot in Castro Valley on December 31, 2026 offering half marathon, 10K and 5K; hikers and walkers welcome.
January 2027
Multi-distance trail races at Lake Chabot across New Year's Eve and New Year's Day, including 5K, 10K, a half marathon and a virtual option.
A mixed-surface running event at Coyote Hills Regional Park offering a half marathon, 10K, and 5K with updated courses, GPX files, and stocked aid stations.
February 2027
Trail race at Almaden Quicksilver Park offering distances from a kids run to 50K, out-and-back courses with marked trails, aid stations, and summit routes to Mt Umunhum.
Trail races from 5K to 50K through eucalyptus forests and lakeside trails at Lake Chabot Regional Park near Castro Valley, CA.
March 2027
Point to point half marathon from the Hacienda Entrance up to Mt Umunhum with 4,767 feet of ascent, marked aid stations, drop bag service and shuttle transport back to the start.
Multiple trail distances run through Redwood Regional Park on March 20, 2027 at Chabot Space & Science Center. Routes use East Ridge, West Ridge, Stream and Bridle trails and distances were measured with a Rolatape surveyor's wheel.
A running event at Quarry Lakes Regional Recreation Area in Fremont offering a Half Marathon, 10K and 5K on a mostly-flat course along the historic Western Pacific Trail.
April 2027
Trail race at Santa Teresa County Park on April 3, 2027 offering 5K, 10K, 10 mile and half marathon on marked, hilly trails.
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