Trail Running calendar near Stonestown 2025-2026

The Hark the Herald Half Marathon & 10K is a scenic running event taking place on December 13, 2025, at Angel Island State Park in Belvedere Tiburon, California. Celebrating its 37th annual edition, the race features a challenging loop trail that offers stunning views of the Golden Gate Bridge, San..

The Summit Rock Half Marathon, along with 10K and 5K events, takes place in the scenic Sanborn County Park, nestled in the Santa Cruz Mountains near Saratoga, California. Participants can enjoy running through beautiful redwood groves and along single-track trails, with options for both experienced..

The Brazen New Year's Eve event offers participants the chance to run a half marathon, 10K, or 5K at Lake Chabot in Castro Valley, California. This event is designed for runners of all levels, including hikers and walkers, making it an inclusive experience. It serves as a perfect opportunity to fini..

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 an exciting trail running event set in the scenic Almaden Quicksilver County Park near San Jose, California. Scheduled for January 3, 2026, this event features nine different race distances, including a Kids Run, 5K, 10K, half marathon, marathon, and a challe..

Coyote Hills Run is a running event scheduled for January 24, 2026, at Coyote Hills Regional Park in Fremont, California. Participants can choose from various distances, including a 5K, 10K, and half marathon, with registration fees varying based on the timing of registration. The event promotes out..

The Mt. Umunhum Trail Conquest - Winter is an exciting running event taking place at Almaden Quicksilver County Park in San Jose, CA. Participants can choose from various distances, including a 50K, Marathon, 30K, Half Marathon, 7 Miler, 5K, and a Kids Run.The course features scenic trails that lead..

Bay Breeze 2026 is a scenic running event taking place at the San Leandro Marina Park, featuring a half marathon, 10K, and 5K races. Known for its picturesque views of San Francisco and the Bay, the course offers a mostly flat, easy trail ideal for both seasoned runners and beginners. Participants c..