San Lorenzo River Trail Run

The Hacienda Hills Trail Run - Spring is an exciting trail running event set in the scenic Almaden Quicksilver County Park near San Jose, California. Scheduled for May 3, 2025, this event features nine different race distances, including a 50K, Trail Marathon, 30K, Half Marathon, 9 Mile, 10K, 5K, Mi..

The Race for Open Space is a trail running event organized by the Big Sur Land Trust, taking place in the scenic Palo Corona Regional Park. Scheduled for May 10, 2025, this event features multiple race options, including a 1-mile Fun Run, 5K, 12K, 25K, and a challenging 35K+ course. Participants wil..

The Quicksilver Endurance Runs, taking place in San Jose, CA, features both 50K and 100K races on scenic, hilly trails. Celebrating its 40th edition, the event offers participants a chance to run through beautiful oak forests and meadows, with stunning views of the Santa Clara Valley and Santa Cruz..

The 13 Mile Trail Race Top Down is a half marathon event taking place in San Jose, California, on May 17, 2025. The race features a scenic course that traverses two beautiful parks: Almaden Quicksilver Park and Sierra Azul Open Space Preserve. Participants will be transported to the starting point a..

Trailquake 2025 is an exciting running event taking place in Sanborn Park, Saratoga, California, featuring a half marathon, 10K, and 5K races. Participants will enjoy beautiful trails through redwoods and pines, with options suitable for runners and walkers of all levels. The event promises breathta..

Run for Amma is an annual charity running event held in Los Gatos, California, aimed at raising funds and awareness for cancer research. The event features three race distances: 50K, 30K, and 10K, with all registration proceeds benefiting the UCSF Julia Carnevale Lab. Participants can enjoy scenic t..