Trail Running calendar near Santa Venetia 2025-2026

The Ruth Anderson Memorial Endurance Run is a prestigious running event held annually in San Francisco, California, with the next edition scheduled for October 11, 2025. This endurance run features multiple race distances, including 50 miles and 100 kilometers, and takes place on a scenic 4.5-mile l..

The Haunted Hills 10K in Redwood City is a unique running event scheduled for October 25, 2025. Participants can form teams of 1 to 5 and embark on a fun-filled adventure through the festively decorated neighborhoods. Runners will navigate approximately 36 checkpoints on the 10K course, answering si..

The Oakland Tech 5km Fundraiser Race and 1 Mile Fun Run/Walk is an exciting event taking place at Joaquin Miller Park, aimed at supporting the Oakland Tech Cross Country and Track Team. Participants can choose between a challenging 5K trail run or a more leisurely 1-mile fun run/walk, both set again..

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

The Quarry Turkey Half Marathon is a family-friendly running event taking place on November 29, 2025, at Quarry Lakes Regional Park. This Thanksgiving weekend tradition features a half marathon, 10K, and 5K, along with a free "Little Turkeys" race for children. Participants are encouraged to wear Th..

The Krampus Cross Country event offers participants a choice between a 5K, 10K, or a Naughty Nine Miler, available both live in San Francisco and virtually from December 5 to December 8, 2025. The event encourages runners to "pay penance to Krampus" and features a festive atmosphere with unique swag..

The Hunter S. Thompson Fear & Loathing event is a renowned ultra-running race held annually in San Francisco, CA, since 1985. The event features two main distances: a 50K and a 50-mile race, with no entry fee required.Participants navigate a course primarily on city streets, with some trail options ..

The Brazen New Year's Day event in 2026 offers participants a choice of three scenic running distances: a half marathon, 10K, and 5K, set against the beautiful backdrop of Lake Chabot in Castro Valley, California. This invigorating race takes place on January 1st, welcoming runners to kick off the n..