Trail Running calendar near Napa 2025-2026

The Auburn Resolution Run is an exciting trail running event scheduled for January 1, 2026, at Overlook Park in Auburn, California. This event offers participants a choice of distances, including a 5K, 10K, 10-mile run, and a virtual run option for any distance. It serves as a perfect opportunity to..

Brazen New Year's Day 2026 is a scenic running event held at Lake Chabot in Castro Valley, California. Participants can choose from a half marathon, 10K, or 5K race, all set on invigorating trails that welcome the first sunrise of the year. The event offers a festive atmosphere, encouraging runners..

The Hacienda Hills Trail Run - Winter is a trail running event held at Almaden Quicksilver County Park near San Jose, California. It offers nine race distances ranging from a Kids Run and 1 mile to challenging ultra distances like 50K and a trail marathon, all featuring increasing elevation gain. Th..

The Folsom Lake Sweetwater Trail Run, held at Folsom Lake State Recreation Area in El Dorado Hills, CA, offers a variety of distances including Kids Run, 1 Mile, 5K, 10K, 9 Mile, Half Marathon, 30K, Trail Marathon, and 50K. The course is predominantly single-track trail (95%) with some dirt road sec..

The Coyote Hills Run takes place at Coyote Hills Regional Park, located at 9400 Quarry Road in Fremont, California, along the eastern shoreline of San Francisco Bay. This event offers multiple race distances including a 5K, 10K, and a half marathon, welcoming both runners and hikers. The park is not..

The Mt. Umunhum Trail Conquest - Winter is a trail running event held at Almaden Quicksilver County Park in San Jose, California. The race offers multiple distances including a 50K, marathon, 30K, half marathon, 7-mile, 5K, mile, and a kids run.The longer courses traverse the scenic Sierra Azul Open..

Bay Breeze in San Leandro, California, is a scenic running event featuring a half marathon, 10K, and 5K distances. Held at the San Leandro Marina Park, the course offers mostly flat, easy bayside trails that stay close to the water, providing romantic vistas of San Francisco and the Bay. The event w..

FOURmidable is a challenging trail running event held in Auburn, California, set in the scenic Sierra Nevada foothills. The race offers multiple distances including a 50K, 35.5K, half marathon, and 13K, catering to a range of endurance levels. Participants experience rugged terrain and stunning natu..

The Bad Ass Backyard Ultra (B.A.B.U.) is an endurance running event held at Dry Creek Parkway in Rio Linda, California, near northern Sacramento. This backyard ultra challenges runners to complete a 4.16-mile loop every hour, starting on the hour, with each loop called a "yard." Participants must be..

The Napa Valley Endurance Run is a challenging trail running event held in Calistoga, California, starting and finishing at the Calistoga Fairgrounds. It offers four race distances: 50k, 35k, half-marathon, and 10k, all traversing scenic and rugged terrain through Robert Louis Stevenson State Park a..

The Outlands Endurance Race, held at Peninsula Campground in Pilot Hill, California, offers challenging trail running distances of 25K, 50K, and 50 miles. Set along the rugged, scenic singletrack trails bordering Folsom Lake, the course features significant elevation gains—1,452 ft for the 25K, 3,41..

The Canyons Endurance Runs will take place in Auburn from Friday 24 April 2026 to Saturday 25 April 2026. You can run between 25 and 161 kilometers.

Run for Amma is an annual charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California, supporting UCSF cancer research. Celebrating its 15th anniversary, the event offers three race distances: a challenging 50K with 5,266 feet of elevation gain, a 30K with 3,629 feet of..

The Rim Rock 50 Mile Trail Challenge is an inaugural ultramarathon held in Napa Valley, California, centered at Skyline Wilderness Park. The race features a challenging 50-mile solo course or a 50-mile relay for teams of two, traversing rugged trails through Skyline Wilderness Park, Napa Open Space..

The Napa Wilderness Trail Runs, held at Skyline Wilderness Park in Napa, California, offer a variety of trail running distances including 10K, 21K (half marathon), 30K, and a challenging 50K ultra marathon. The courses feature scenic routes with steep climbs, notably the Rim Rock Trail, providing st..