Trail Running calendar near Ripon 2026-2027

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.

Trail races in Pilot Hill, CA on Dec 12, 2026 offering distances from 5K to 50K on stony, hilly dirt paths with lake views.

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

A trail event in Cool, CA on Dec 12, 2026 offering a 50K and Half Marathon with aid stations, GPX maps, finisher medals, and a 200-runner limit.

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

Trail event in Placerville on December 24, 2026 with multiple distances on the El Dorado Trail, course markings, aid stations, medals, and day-of registration.

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

Lake Chabot trails in Castro Valley host Brazen New Year's Day on January 1, 2027 with half marathon, 10K, 5K plus remote and hiker options.

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.

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.

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.

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.