Trail Running calendar near Monterey County 2025-2026

The No Foolin' Foot Race, organized by the Parks and Recreation Foundation of San Carlos, invites participants to explore the scenic trails of Big Canyon and Eaton Parks. This annual event features challenging 5k and 10k courses, with significant elevation gains, as well as a 1-mile course for child..

The Hacienda Hills Trail Run - Spring is an exciting trail running event taking place at Almaden Quicksilver County Park in 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, Mile, ..

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

The Race for Open Space is a multi-course trail running event designed to raise funds and awareness for the Big Sur Land Trust, taking place in the scenic Palo Corona Regional Park. Participants can choose from various distances, including a 1-mile fun run, a 5k, and longer options up to 35k+. This ..

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 Almaden Quicksilver Park and Sierra Azul Open Space Preserve. Participants will be transported to the starting point at Mt.Umunhum, ensurin..

The Pacifica Foothills Trail Run, hosted by Inside Trail Racing, offers participants a choice of three distances: 10K, Half Marathon, and 30K, set in the scenic San Pedro Valley County Park in Pacifica, California. The event features a mix of moderately technical dirt trails that wind through the co..

Trailquake is an exciting running event taking place in Saratoga, California, featuring a half marathon, 10K, and 5K race. Set against the stunning backdrop of redwoods and pines, participants can enjoy beautiful trails while engaging in a challenging yet rewarding experience. The event welcomes run..

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

The Calero Trail Run - Spring is an exciting trail running event held at Calero County Park in San Jose, CA. Participants can choose from various distances, including a 50K, marathon, 25K, half marathon, 15K, 10K, 5K, and a kids run. The course features scenic single tracks, hills, and dirt paths, m..

The 2025 Lake Chabot Trail Challenge features a Half Marathon and a 5K run, taking place in Castro Valley, California. This annual event, now in its 41st year, is popular among trail runners and offers scenic courses with views of Lake Chabot, Mt. Diablo, and the San Francisco Bay.The Half Marathon ..

The Toro Park Trail Run offers a scenic running experience in Salinas, California, featuring a variety of race distances including a Full Marathon, Half Marathon, and 10K. Set in the picturesque Toro Park, participants can enjoy the rolling golden hills and smooth trails that characterize the iconic..

The Mt Umunhum Ultras is an exciting trail running event set in the scenic Santa Clara Valley and Sierra Azul Open Space Preserve. Participants can choose from various challenging distances, including a 52-mile ultra and a 50K, featuring over 15,000 feet of elevation gain. The course takes runners t..

The Golden State Trail Run, hosted by Inside Trail Racing, is a premier summer event taking place at Fort Ord National Monument in Marina, CA, on June 21, 2025. Participants can choose from four distances: 10K, Half Marathon, 35K, and 50K, each featuring unique trails that showcase the area's divers..

The Rock the Loch Half Marathon is a running event taking place from June 27 to June 30, 2025, at Lake Chabot Regional Park in Castro Valley, CA. Participants can choose to run in person or virtually, with options for a half marathon, 10K, and 5K distances. The event promises scenic trails, quality ..

The Rancho Hills Trail Run - Summer is an exciting running event set in the scenic Rancho Cañada del Oro Open Space Preserve in Morgan Hill, CA. Participants can choose from various distances, including a 50K, Trail Marathon, 30K, Half Marathon, 10 Mile, 8 Miler, 10K, and 5K. This challenging race f..

The San Lorenzo River Trail Run is an exciting running event taking place in Santa Cruz, California, featuring 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. Participants will enjoy a scenic course that winds..

The Calero Hills Trail Fest is an exciting trail running event held at Calero County Park in San Jose, CA. Participants can choose from various distances, including a marathon, 30K, half marathon, 10 miler, 10K, and 5K. The course features challenging ascents and descents through scenic oak groves, ..

The Skyline 50K Endurance Run is one of California's oldest and most celebrated 50K races, taking place annually in August at Lake Chabot Marina in Castro Valley. This event is designed for both novice and experienced ultrarunners, featuring a scenic course that loops through the East Bay Regional P..

The Almaden Hills Trail Run is an exciting running event held at Almaden Quicksilver Park in San Jose, California. Participants can choose from various distances, including 5K, 10K, 8M, Half Marathon, 30K, Trail Marathon, and 50K, catering to runners of all skill levels. The course features a mix of..

The SPASM Crystal Springs Trail Run is an exciting running event taking place in Woodside, California, featuring multiple race distances including an 8K, Half Marathon, 35K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. Set against the stunning backdrop of Huddart Par..