Rocky Ridge Trail Half Marathon

The Grizzly Peak Trail Run is an exciting running event taking place at Lake Anza in Tilden Regional Park, Berkeley, CA. Scheduled for May 10, 2025, it features multiple race distances including a 10K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under...

Nitro Trail 2025 is a trail running event held at Point Pinole Regional Shoreline Park in San Pablo, California. The race offers three distance options: a half marathon, 10K, and 5K, catering to a range of runners from casual to more competitive trail enthusiasts. The course is set in a historic are..

The Quicksilver Endurance Runs is an annual trail running event held in San Jose, California, featuring 50K and 100K races on scenic, challenging single-track trails and fire roads through oak forests, meadows, and ridges with panoramic views of the Santa Clara Valley and Santa Cruz Mountains. The 1..

The 13 Mile Trail Race Top Down is a scenic trail running event held in San Jose, California, featuring a half marathon course through Almaden Quicksilver Park and Sierra Azul Open Space Preserve. Participants are transported from Almaden Quicksilver Park to the starting point at Mt. Umunhum, where..

The Calero Trail Run - Spring is a trail running event held at Calero County Park in San Jose, California, featuring multiple race distances including a Kids Run, 5K, 10K, 15K, half marathon, 25K, marathon, and 50K. The course offers challenging single tracks, hills, dirt paths, and scenic vistas, m..

The Wildcat Half Marathon, held in El Sobrante, California, offers a challenging trail running experience through Wildcat Canyon Regional Park. Participants can choose from a half marathon, 10K, or 5K race, all featuring spectacular 360-degree views of the Bay Area, including sights of San Francisco..