Trail Running calendar near Walnut Creek 2025-2026

The Summit Rock Half Marathon, held in Saratoga, California, offers runners and walkers the choice of a half marathon, 10K, or 5K race through the scenic redwood groves of Sanborn County Park in the Santa Cruz Mountains. The course features miles of single-track trails shaded by a lush canopy, with..

The Folsom Lake Point to Point Trail Half Marathon is a scenic race held near El Dorado Hills, California, featuring mostly single-track trails and some dirt roads along Folsom Lake. The course offers beautiful views of the lake, foothills, oak trees, lush greenery, and snow-capped Sierra Mountains...

The Hark the Herald Half Marathon & 10K is an annual running event held at Angel Island State Park near Belvedere Tiburon, California. The race features a scenic, hilly loop trail around Angel Island, offering stunning panoramic views of the Golden Gate Bridge, San Francisco, Alcatraz Island, the Ea..

The Brazen New Year's Eve event, held at Lake Chabot in Castro Valley, California, offers runners and walkers the opportunity to participate in a half marathon, 10K, and 5K trail races. This festive race provides a scenic course through the trails of Lake Chabot, welcoming participants of all levels..

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 a trail running event held at Almaden Quicksilver County Park near San Jose, California. It offers nine race distances ranging from a Kids Run and 1 mile to challenging ultra distances like 50K and a trail marathon, all featuring increasing elevation gain. Th..

The Folsom Lake Sweetwater Trail Run is a scenic trail race held at Folsom Lake State Recreation Area in El Dorado Hills, California. Participants can choose from various distances, including Kids Run, 1 Mile, 5K, 10K, 9 Mile, Half Marathon, 30K, Trail Marathon, and 50K. The course features mostly s..

The Coyote Hills Run is a scenic running event held at Coyote Hills Regional Park, located at 9400 Quarry Road, Fremont, California, along the eastern shoreline of San Francisco Bay. The event offers multiple race distances including a 5K, 10K, and a half marathon, welcoming both runners and hikers...

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 in San Leandro, California, is a scenic running event featuring a half marathon, 10K, and 5K distances. Held at the San Leandro Marina Park, the course offers mostly flat, easy bayside trails that stay close to the water, providing romantic vistas of San Francisco and the Bay. The event w..

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..

The Napa Valley Endurance Run will take place in Calistoga on Sunday 12 April 2026.