Trail Running calendar near Yountville 2026-2027

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.

Trail races on the Lake Chabot trails in Castro Valley on December 31, 2026 offering half marathon, 10K and 5K; 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.

A New Year event at Granite Beach featuring a 2 mile run 5 mile bike 2 mile run duathlon and a 5K trail run with lake views. Awards include overall champions and age group prizes.

Two scenic trail races along Folsom Lake on January 9, 2027, offering a 12K and 5K on single-track trails, post-race local beer for athletes over 21, commemorative items, hot food and age-group awards.

Trail races in Auburn CA across 50K, 35K, Heavy Half and 8K on technical single track featuring No Hands Bridge, steep climbs, cupless aid stations, and chip timing.

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.

Run through the towering redwoods and lush ferns of Huddart Park in Woodside. This trail event offers multiple distances from a five mile race to a 50K ultramarathon plus a free dash for children.

A trail running event that crosses the Golden Gate Bridge into the Marin Headlands. Races include 15K, 25K, 50K and 50 mile options on January 23 to 24, 2027, organized by Spartan Trail.

A trail running event at Folsom Lake offering distances from a Kids Run to 50K on mostly single-track trails with multiple aid stations and a 9-hour limit.

Trail 10K and 5K at Granite Beach, Folsom Lake on January 23, 2027 with aid stations, finisher medals, pre-order shirts and age group awards.

Experience scenic bay views and varied terrain at Coyote Hills Regional Park with half marathon, 10K, and 5K distances. Enjoy a mix of dirt trails and boardwalks on courses designed with minimal climbing.

Experience the coastal beauty of the Marin Headlands at the Golden Gate Trail Run. Choose from distances ranging from a 50K trail race to a fun kids dash with views of the Golden Gate Bridge and San Francisco.

The Mt. Umunhum Trail Conquest - Winter will take place in San Jose on Saturday 6 February 2027. You can run between 5 and 50 kilometers.

Escape from Folsom on February 6, 2027 at Granite Beach offers a 10 mile and a 5K on scenic trails beside Folsom Lake. Aid stations supply water and fuel and every finisher receives a custom medal.

Jed Smith Ultra Classic on February 6, 2027 is a USATF certified loop event on the American River Parkway offering 50 mile, 50 k, marathon, 30 k and half marathon distances with two aid stations and race day packet pick up.

Experience the unique Coastal Mountain Habitat and Pacific Coast views at this trail event in Pacifica. With distances from a kids dash to a 50K there are options for many different types of trail runners.

Experience a trail running event in Auburn featuring four major climbs and 6000 feet of elevation. Choose from distances ranging from 13km to 50km on a course with less than one mile of pavement.

Experience scenic lake views and wildflowers at Granite Beach during this trail event featuring a half marathon and 5K. Enjoy well stocked aid stations and earn a finisher medal on the trails of Folsom Lake.