Trail Running calendar near Monterey 2025-2026

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..

The Pacifica Foothills Trail Run is a scenic trail running event held at San Pedro Valley County Park in Pacifica, California, nestled in the coastal foothills and northern spur of the Santa Cruz Mountains. The race offers three distances: 10K, Half Marathon, and 30K, all on moderately technical dir..

Trailquake is a trail running event held at Sanborn Park in Saratoga, California, featuring 5K, 10K, and half marathon distances. Participants run through scenic redwood and pine forests along the San Andreas Trail, experiencing breathtaking single-track trails and challenging ascents to peaks with..

Run for Amma is an annual trail running event held at Skyline Ridge Open Space Preserve near Los Gatos, California. The race offers three distance options: 10K, 30K, and 50K, featuring challenging elevation gains of approximately 980, 3,629, and 5,266 feet respectively. The course showcases scenic t..

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, held in Salinas, California, offers runners a scenic experience through iconic Bay Area trails featuring rolling golden hills, coast live oaks, and smooth paths winding through pastures and arroyos. Participants can choose from three distances: a 10K, a half marathon (21K),..

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 in Marina, CA, is a premier summer trail running event held at Fort Ord National Monument. Offering distances of 10K, Half Marathon, 35K, and 50K, the race features diverse terrain including smooth single-track trails, sandy hills, and fire roads. The course showcases the..

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, held in Gilroy, California, is a historic trail running event featuring a half marathon, 10K, and 5K races. Known for its challenging elevation gains—2,828 feet for the half marathon, 1,532 feet for the 10K, and 843 feet for the 5K—the course offers a rigorous test of en..

The Almaden Hills Trail Run in Summer takes place in Almaden Quicksilver Park, San Jose, CA. It offers a variety of distances, including 5K, 10K, 8 miles, half marathon, 30K, trail marathon, and 50K. The course is challenging, featuring 60% dirt roads and 40% single track trails, with significant el..

The Santa Cruz Trail Run, hosted by Inside Trail Racing, takes place at Henry Cowell Redwoods State Park in Felton, California. This scenic event features three distances: 10K, Half Marathon (13.5 miles), and 30K (18.2 miles), with challenging elevation gains up to 3,250 feet. Runners traverse twist..