Run by The Sea

The Calero Trail Run - Spring takes place at Calero County Park in San Jose, California, offering a variety of distances including 50K, marathon, 25K, half marathon, 15K, 10K, 5K, mile, and a kids run. The course features diverse terrain with single track trails, hills, dirt paths, oak trees, and pa..

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 challenging trail running event held in San Jose, California, featuring multiple race distances including 50K, Trail Marathon, 30K, Half Marathon, 9 Mile, 10K, and 5K. The course traverses the scenic Santa Clara Valley, Sierra Azul Open Space Preserve, and Santa Cruz Mount..

The Skyline Ridge Trail Run, held in La Honda, California, offers two distances: a 50K ultramarathon and a 21K half marathon. The courses traverse the scenic Skyline Ridge, Russian Ridge, and surrounding open space preserves, featuring diverse terrain including narrow hiking trails, ranch roads, eve..

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, fire roads, rolling hills, and vibrant wi..

The Rancho Hills Trail Run - Summer is a challenging trail running event held in the scenic Rancho Cañada del Oro Open Space Preserve near Morgan Hill, California. The race offers multiple distances including 50K, trail marathon, 30K, half marathon, 10-mile, 8-mile, 10K, and 5K, catering to a wide r..