Trail Running calendar near Elk Grove 2026-2027

A family friendly Thanksgiving weekend run at Quarry Lakes Regional Park with a half marathon, 10K, 5K and a free short kids race. Costumes and food donations for the Alameda County Community Food Bank are encouraged.

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 distances at China Camp State Park with coastal views, marked single-track and fire road routes, chip timing, cupless aid stations, and a 275-runner capacity.

The Hunter S. Thompson Fear & Loathing will take place in San Francisco on Sunday 6 December 2026. You can run between 50 and 50 miles.

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.

Trail races of 10K, Half, 35K and 50K through redwood forest and single-track in Huddart and Wunderlich County Parks, with marked courses, cupless aid stations, and an 8 hour limit for the longest distances.

Brazen Racing stages a trail event at Lake Chabot in Castro Valley on December 31, 2026 offering half marathon, 10K and 5K options. Hikers and walkers are welcome and free photos and race results are provided.

A family-friendly 5K, 10K and half marathon around Lake Chabot in Castro Valley on January 1, 2027. The half marathon is part of the Brazen Ultra Half Series and includes varied trail terrain with notable climbs.

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 trail races along the shoreline of Folsom Lake on January 9, 2027, offering 5K and 12K single-track courses, post-race local craft beer for participants 21 plus, awards by age group, and included race hat and post-race food.

A trail running event in San Francisco on January 23-24, 2027, offering 15K, 25K, 50K and 50 mile options on soft, hilly trails. The course travels through the Marin Headlands and crosses the Golden Gate Bridge with coastal views.

Trail races on single-track trails around Folsom Lake with distances from a kids run to 50K, marked routes and staffed aid stations; parking is paid and dogs are not allowed on course.

Trail runs at Granite Beach along Folsom Lake with 5K and 10K courses, finisher medals, aid stations, and awards. Organized by Total Body Fitness with entry fees, spring package options, and a volunteer voucher program.

Runs along the bay at Coyote Hills Regional Park in Fremont include a half marathon, 10K and 5K on mostly flat courses with mixed surfaces and boardwalks through marsh areas. Walkers are welcome.

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.

Experience a winter run through the technical terrain of the Red Hills Recreation Area in the Sierra Foothills. Choose between six or twelve mile distances featuring water crossings and muddy trails in a scenic natural environment.

Trail races from a kids run up to 50K at Almaden Quicksilver Park with marked out and back courses, staffed aid stations, and summit options on Bald Mountain and Mt. Umunhum.

Trail runs at Granite Beach along Folsom Lake feature a 5K and a 10 Mile course with aid stations and 2027 finisher medals. Shirts are sold prior to the event and awards are given overall and by age group.

Scenic races at San Leandro Marina on February 13, 2027 feature a half marathon, 10K and 5K along a mostly-flat bayside trail with waterside views; walkers and hikers are welcome and volunteer photographers provide free photos.

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.