Trail Running Calendar California 2024-2025

The SAR Wild Run is a family-friendly running event taking place in Shaver Lake, California, designed to support the Fresno County Search and Rescue team. Participants can choose from various events, including a Trail Half Marathon, 10K Trail Run, 5K Trail Wild Run, 2M Hike, and a Virtual option. Th..

The Bulldog Ultra is a renowned trail running event held in the scenic Santa Monica Mountains, specifically at Malibu Creek State Park. Celebrating its 32nd year, the event features two challenging courses: a 50k ultra and a 25k trail run, both offering breathtaking views and demanding terrain. Part..

The Almaden Hills Trail Run is an exciting running event held at Almaden Quicksilver Park in San Jose, California. Participants can choose from various distances, including 5K, 10K, 8M, Half Marathon, 30K, Trail Marathon, and 50K, catering to runners of all skill levels. The course features a mix of..

The Redwood (Summer) Trail Run is an exciting running event taking place in Oakland, CA, featuring a variety of distances including a 5-mile run, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and younger. The course winds through the scenic Redwood Regional P..

The Tamalpa Headlands 50K is a challenging ultramarathon set in the scenic Marin Headlands, California, featuring a single-loop course that showcases iconic trails such as Coastal, Miwok, and Dipsea. Established in 1998, this event is presented by Nike Trail and the Tamalpa Runners, and it includes ..

The Double Dipsea is a challenging 13.7-mile trail run that takes place annually, starting at Stinson Beach, California. First held in 1970, this race is known for its unique handicapped start format, where slower runners begin first, creating a dynamic environment of constant passing on narrow trai..

The China Peak Trail Run, scheduled for September 6, 2025, in Lakeshore, California, offers a thrilling experience for trail running enthusiasts. Participants can choose from three distances: 12km, 25km, and 50km, all set against the stunning backdrop of the Western Sierra Range. The course features..

The Diablo Trail Run, set for September 7, 2025, in Clayton, California, offers a variety of race distances including 4 miles, 10 miles, a half marathon, a marathon, and a 50K, along with a free Kid's Run for children aged 6 and under. The event takes place in the scenic Mount Diablo State Park, fea..

The Mammoth Trail Fest, taking place from September 18 to 21, 2025, in Mammoth Lakes, CA, is a vibrant multi-day event celebrating trail running and community spirit. Participants can choose from various races, including the Mammoth Triple, 50K, 26K, Dragon Ascent, and a Kids Run. The festival featu..

The Gold Rush Growler Trail Runs feature a 10-mile and a 5K race, taking place at Granite Beach, Folsom Lake SRA. Participants can enjoy scenic courses along the shoreline and single-track trails. The event includes new courses for 2025, post-race IPA beer, and custom finisher beer glasses.Awards ar..

That's No Moon Ultras is an exciting running event taking place in Silverado, California, featuring three challenging distances: 50 Miler, 50K, and 30K. Set against the stunning backdrop of the Cleveland National Forest and Santa Ana Mountains, participants can expect breathtaking views and sunny we..

The Rocky Ridge Trail Half Marathon is set to take place on September 20, 2025, in the scenic Las Trampas Wilderness of San Ramon, California. This challenging event is part of the Brazen Ultra Half Series and features a half marathon, along with 10K and 5K options. The half marathon is known for it..

The Pacifica Summit Run is an exciting running event taking place at San Pedro Valley State Park in Pacifica, CA. Participants can choose between a 10K and a Half Marathon, both offering stunning views of the Pacific Ocean coastline and challenging switchbacks. This event is designed for runners of ..

The Angeles National Forest Trail Race, celebrating its 20th anniversary, offers both 25K and 50K races set in the scenic San Gabriel Mountains. The event takes place at the iconic Mt. Wilson Observatory, featuring challenging courses with significant elevation gains of 3,500 feet for the 25K and 7,..

The Sunset & Cider Trail Races, taking place on September 27, 2025, in Auburn, CA, offers an exciting trail running experience in the picturesque American River Canyon. Participants can choose from three race distances: a challenging 50K, a scenic 13-mile half marathon, or a 5-mile run, catering to ..

The Dick Collins Firetrails will take place in Castro Valley from Saturday 27 September 2025 to Sunday 28 September 2025. You can run between 42 and 100 kilometers.

The Auburn Half Marathon, set for October 4, 2025, takes place in the scenic Endurance Capital of the World, starting at Overlook Park in Auburn, California. Participants can choose from three race distances: a half marathon, a 12K, and a 5K, with the half marathon course featuring over half of its ..

The Kokanee Trail Runs is a popular annual running event held in the scenic Lake Tahoe Basin, featuring a Half Marathon, 5K, 10K, and a non-competitive Tadpole Trot for children. Participants can enjoy breathtaking views along the courses, with the Half Marathon offering stunning vistas of Lake Taho..

The HOKA Kodiak Ultra Marathons by UTMB is a thrilling running event set in the picturesque mountain town of Big Bear Lake, California. This two-day festival features a variety of race distances, including 100M, 100K, 50K, 21K, and 10K, allowing participants to experience diverse landscapes and clim..

The Mile Madness Endurance Run is an exciting endurance event scheduled for October 10-13, 2025, at the Sunset Whitney Recreation Area in Rocklin, California. Participants can choose from various timed races, including 6-hour, 12-hour, 24-hour, 48-hour, and 72-hour events, all set on a scenic 1.05-m..