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 San Carlos in its third annual event. Runners can choose between a challenging 5k and 10k course, featuring significant elevation gains, or a 1-mile course f..

The Hacienda Hills Trail Run - Spring is a trail running event held near San Jose, California, at Almaden Quicksilver County Park. It features nine race distances, including a Kids Run, 1 Mile, 5K, 10K, 9-Mile, Half Marathon, 30K, Trail Marathon, and 50K, offering options for all levels of runners...

The Race for Open Space is a trail running event organized by the Big Sur Land Trust, taking place in Monterey County. Scheduled for May 10, 2025, this event features multiple courses, including a 1-mile Fun Run, a 5K, a 12K, a 25K, and a challenging 35K+ route. Participants will traverse the scenic..

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..

Trailquake is an exciting running event taking place in Saratoga, California, featuring a half marathon, 10K, and 5K races. 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 ru..

The Run for Amma is a charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California, on May 17, 2025. The event features three race distances: 50K, 30K, and 10K, with start times at 7:30 AM and 9:00 AM. All proceeds from registration are donated to the UCSF Julia Carnevale..

The Pacifica Foothills Trail Run, taking place at San Pedro Valley Park in Pacifica, CA, offers participants a choice of three distances: 10K, Half Marathon, and 30K. Set against the stunning backdrop of the Santa Cruz Mountains, the event features scenic dirt trails that wind through coastal foothi..

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 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 views of Lake Chabot, Mt. Diablo, and the San Francisco Bay.The Half Marathon course is a h..

The Toro Park Trail Run is an exciting running event set in the picturesque Toro Park, located in Salinas, CA. Participants can choose from three race distances: a Full Marathon, a Half Marathon, and a 10K, all featuring the stunning scenery of the Bay Area, including rolling golden hills and smooth..

The Mt Umunhum Ultras is a trail running event held in San Jose, California, featuring multiple race distances including a 52-mile ultra, 50K, trail marathon, 30K, half marathon, and shorter races like 9-mile, 10K, and 5K. The event offers challenging courses with over 15,000 feet of elevation gain..

The Skyline Ridge Trail Run is a scenic running event taking place in La Honda, California, featuring two distances: a 50K and a 21K. Participants will traverse the beautiful landscapes of Skyline Ridge and Russian Ridge Open Space Preserves, experiencing diverse terrains from narrow trails to wide..

The Golden State Trail Run, organized by Inside Trail Racing, is a summer ultramarathon event held at Fort Ord National Monument near Monterey, California. The race features four distances: 50K, 35K, half marathon, and 10K, offering participants a scenic tour of diverse terrain including rolling hil..

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 a scenic trail run, com..

The Rancho Hills Trail Run - Summer is a challenging trail running event held in the scenic foothills of the South Bay Area, specifically within the Rancho Cañada del Oro Open Space Preserve in Morgan Hill, California. The race features a variety of distances, including 50K, trail marathon, 30K, hal..

The San Lorenzo River Trail Run is an exciting running event set 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 experience a scenic course that winds thr..

The Calero Hills Trail Fest is a trail running event held at Calero County Park in San Jose, California. Participants can choose from various distances, including marathon, 30K, half marathon, 10-mile, 10K, and 5K courses. The race features challenging terrain with single track trails, hills, and di..

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 Mount Madonna Challenge is an annual running event held in Gilroy, California, featuring a half marathon, 10K, and 5K races. Established in 1975, the event promotes trail running and supports local high school athletes through scholarships. The South Valley Running Club initially managed the rac..