Trail Running calendar near Angwin 2025-2026

The Bay 2 Bankers 10K is an exciting running event set in San Francisco, featuring a unique mystery theme that celebrates the city's classic vibes. Participants will start near the iconic Ferry Building and navigate through various neighborhoods using a custom map. Teams of 1 to 5 will answer multip..

The Muir Woods Mountain Challenge, formerly known as Table Rock, is an exciting trail running event held in Stinson Beach, California. Participants can choose from three distances: 10K, Half Marathon, and 30K, each featuring challenging terrain and stunning views of the Pacific Ocean and surrounding..

The Dirty Dozen Run, organized by Brazen Racing, is a unique endurance event taking place at Point Pinole Regional Shoreline. Scheduled for July 12, 2025, participants can choose to run for 12, 6, or 3 hours, either solo or in teams of two or three. The race features a scenic 3.37-mile loop primaril..

The Blood, Sweat & Beers Trail Run takes place in the scenic American River Canyon, offering participants a challenging experience on rugged terrain. The event features two course options: a Long Course of 10.5 miles and a Short Course of 5.9 miles, both incorporating a mix of single track trails, d..

The Folsom 100 is an exhilarating 100-mile ultramarathon that takes place around Folsom Lake, California. Scheduled for August 1, 2025, this challenging race features a point-to-point course with a single out-and-back section. Participants have 34 hours to complete the loop, which includes stunning..

The Rodeo Valley Trail Run, taking place in the scenic Marin Headlands, offers a variety of race distances including 8K, Half Marathon, 30K, and 50K. Participants will enjoy breathtaking views of the Pacific Ocean, San Francisco, and the Golden Gate Bridge while navigating challenging terrain that f..

The Skyline 50K Endurance Run is one of California's oldest and most celebrated 50K races, taking place annually in August at Lake Chabot Marina in Castro Valley. This event is designed for both novice and experienced ultrarunners, featuring a scenic course that loops through the East Bay Regional P..

Bear Creek Run is a trail running event taking place in Lafayette, California, on August 9, 2025. Participants can choose from three race distances: a half marathon, 10K, and 5K, all set in a scenic, hilly course through Briones Regional Park. The event welcomes hikers and walkers, ensuring an inclu..

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

The Tamalpa Headlands 50K is a challenging ultramarathon set in the stunning Marin County, California, featuring iconic trails such as Coastal, Miwok, and Dipsea. Established in 1998 and presented by the Tamalpa Runners, this single-loop race offers approximately 6,500 feet of elevation gain, combin..

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 Diablo Trail Run, scheduled for September 7, 2025, in Clayton, California, offers a variety of race distances including a 4-mile, 10-mile, half marathon, marathon, and 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 Bar Trail Runs, organized by Skybreaker Racing, is a new trail running event set to take place in Auburn, California, on September 7, 2025. Participants can choose from three race distances: a Half Marathon, 10K, and 5K. The event features scenic single-track and double-track trails with..

The Berkeley Trail Adventure is an exciting running event set in the scenic Tilden Regional Park and Wildcat Canyon in Berkeley, California. Participants can choose from four distances: 10K, Half Marathon, 35K, and 50K, making it suitable for runners of all experience levels. The course features a m..

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, with awards for top finishers and age group categories.Each co..

The Rocky Ridge Trail Half Marathon is set to take place on September 20, 2025, at the scenic Las Trampas Wilderness in San Ramon, California. This challenging event features a half marathon, along with 10K and 5K options, catering to various skill levels. The half marathon is known for its rugged t..

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 Sunset & Cider Trail Races, taking place in Auburn, CA, on September 27, 2025, offers an exciting opportunity for trail runners of all levels. Participants can choose from three race distances: a challenging 50K, a scenic 13-mile half marathon, or a 5-mile run. The event features beautiful trail..

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 Auburn Half Marathon, scheduled for October 4, 2025, takes place in the historic town of Auburn, California, known as the "Endurance Capital of the World." This trail running event features a half marathon, 12K, and 5K, with courses that traverse the scenic Western States Trail and Auburn State..