Trail Running Calendar California 2025-2026

The Tulare Santa Fe Trail-A-Thon 5k is an annual running event organized by the Tulare Sunrise Rotary Club, taking place at Live Oak Park in Tulare, California. This community-focused event supports the club's High School Scholarship Program, which awarded significant scholarships to local students...

The Sri Chinmoy 6-Hour Race in San Diego is a timed endurance event held on a scenic 5-mile asphalt loop around Lake Miramar. The mostly flat course features gentle hills and separate lanes for runners and pedestrians or cyclists. Participants enjoy four aid stations offering hydration, fuel, and en..

The Rancho Ramble Trail Run takes place at Santa Margarita Ranch in Central California, offering runners a scenic experience across rolling grassy hills, open cow pastures, and oak-lined arroyos. The course features deceptively steep and long hills with varied terrain that challenges footing and rhy..

The Tierra Redonda Mountain Trail Run and Camp is a trail running event held in Bradley, California. It offers multiple race distances including 48-hour, 24-hour, 20km, 10km, and 5km options, catering to a wide range of endurance levels. The event is part of the AllWeDoIsRun series, known for creati..

The 4 Mile Hill Challenge is an exciting running event scheduled for November 15, 2025, at the Audubon Center at Debs Park in Los Angeles, CA. This event features a scenic 4-mile course that includes rolling hills and all-trail paths, making it suitable for participants of all skill levels, from beg..

The Falcon Crest Winter Trail Challenge is a scenic trail running event held in the foothills of El Dorado Hills, California, near Folsom Lake. The race offers multiple distances including 5K, 10K, 15K, half marathon, 30K, and a trail marathon. The course features mostly single-track dirt and rocky..

The Darrington Single Track Trail Challenge is a trail running event held near Pilot Hill, California, along the scenic shores of Folsom Lake. The race offers multiple distances including a 36-mile, 18-mile, 10K, and 5K, catering to a range of runners. Participants traverse stony dirt paths that win..

The Golden Gate Trail Classic will take place in San Francisco from Saturday 22 November 2025 to Sunday 23 November 2025. You can run between 15 and 50 miles.

The Zoom Turkey Trot is a festive running event taking place in San Jose, California, featuring multiple race options including a 5K, 10K, and Half Marathon, as well as youth categories and a free Kid's Run. Participants can enjoy a scenic run along the Coyote Creek trail on Thanksgiving morning, wi..

The Quarry Turkey Half Marathon is a family-friendly running event held at Quarry Lakes Regional Park in Fremont, California, on Thanksgiving weekend. The event features a half marathon, 10K, 5K, and a free "Little Turkeys" sprint for children. The courses are mostly flat and fast, set on the scenic..

The Quad Dipsea will take place in Mill Valley on Saturday 29 November 2025.

Boundiful Endurance Runs take place at Washburn Ranch in Hemet, California, featuring a one-mile loop on a 100% hardpacked dirt surface through a Southern California fruit and nut farm. The event offers multiple distances including 3, 6, 12, and 24-hour runs, a 100-mile solo challenge, and relay opt..

The Black Mountain Turkey Burner is a challenging trail race held annually at Black Mountain Community Park in San Diego, California. Part of the Endurance Race Series' Sunshine Series, this event features a half marathon, 10K, and 5K distances. The half marathon is known for its technical trails an..

The Over The Hill Track Club High Desert 50K & 30K is an annual ultramarathon held in Ridgecrest, California, organized by the Over The Hill Track Club since 1986. The race features two distances—50 kilometers and 30 kilometers—starting and finishing at Cerro Coso Community College. The course consi..

The Calero Trail Run - Winter takes place at Calero County Park in San Jose, California, offering a variety of distances including 50K, trail marathon, 25K, half marathon, 15K, 10K, 5K, mile, and a kids run. The course features challenging single-track trails, hills, dirt paths, oak trees, and panor..

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and loss of 2860 feet, making it suitable for experienced runner..

The Death Valley Trail Marathon, held annually in Death Valley National Park, California, offers a scenic wilderness trail run on a gravel jeep road from Beatty, Nevada, through Titus Canyon, finishing within the park. This event features both marathon and half marathon distances, limited to 200 par..

The Peacock Gap Trail Run, hosted by Inside Trail Racing, takes place at China Camp State Park in San Rafael, California. Scheduled for December 6, 2025, the event offers three distances: 10K, half marathon, and 30K, with courses featuring scenic single-track trails, forested areas, and views of Mt...

The ZombieRunner Quarry Lakes event, held at Quarry Lakes Regional Recreation Area in Fremont, CA, offers a variety of race distances including 5K, 10K, Half Marathon, 30K, Marathon, and age-specific 5K and 10K races, plus a free Kid's Run for children 6 years and younger. The courses are flat, fast..

The Anza Borrego Cuyamaca 50 Mile Run is a point-to-point ultramarathon held in Julian, California, showcasing some of San Diego’s most scenic trails. Covering 50 miles, the course begins at the Sunrise Trailhead, ascends Stonewall Peak, traverses wooded trails near a lake in Cuyamaca Rancho State P..