Trail Running calendar near Santa Venetia 2025-2026

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..

The Bad Ass Backyard Ultra, held in Rio Linda, California, is a unique running event where participants complete 4.16-mile loops within one hour, starting a new loop every hour on the hour. The event, which began as a grassroots gathering in 2023, has evolved into an official race under the Singletr..