Trail Running calendar near Elk Grove 2026-2027

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.

Quarry Turkey at Quarry Lakes Regional Park on November 28, 2026 offers a mostly flat half marathon, 10K, 5K and a free kids sprint, with costume fun and food bank support.

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 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.

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.

A multi-distance trail race at Magnolia Ranch Trailhead in Pilot Hill, CA on December 12, 2026, organized by Troy's California Trail Runs, featuring stony dirt paths, hill sections, and lake views with options from a kids run to a 50K.

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.

December 12 2026 trail races in Cool CA offering a 50K and Half Marathon with significant elevation, time cutoffs, live tracking and finisher medals.

A trail event on the El Dorado Trail in Placerville offering distances from a kids run to a half marathon on December 24, 2026.

Trail races at Lake Chabot on December 31, 2026 include a half marathon, 10K and 5K with 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.

Resolve2Run is an annual New Year’s Day 5K and 10K run-walk around Chicago Park School and scenic Nevada County, held as a fundraiser for the Peardale-Chicago Park Firefighters' Association, Chicago Park 4-H Club, and the school PTA.

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.

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 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.