Calero Trail Run - Winter

The Giro di Fremont is an exciting 60K running event taking place in Fremont, California. This unique adventure showcases the area's hidden gems, featuring a point-to-point course from Mission Peak Trailhead to Don Edwards Wildlife Refuge. Participants will navigate with minimal course markers, so G..

Redtail Ridge is a trail running event hosted by Inside Trail Racing, featuring distances of 10K, Half Marathon, 30K, and 50K. Set in the scenic Lake Chabot Regional Park in Castro Valley, CA, the course offers a mix of eucalyptus forests, grassy meadows, and lakeside paths, making it accessible for..

The Sanborn Trail Challenge is an exciting running event held in Sanborn County Park, Saratoga, CA, featuring a variety of race distances including a Half Marathon, 8 Mile, 4 Mile, Mile, and a Kids Run. The course is predominantly single track trail, offering a challenging and scenic experience thro..

The Race to the Top of Mt. Umunhum Vert Trail Challenge is a half marathon event taking place in San Jose, California, within the scenic Almaden Quicksilver Park and Sierra Azul Open Space Preserve. Participants will experience a challenging point-to-point course, with a six-hour time limit to compl..

The South Hills Single Track Trail Run - Spring is an exciting trail running event taking place at Calero County Park in San Jose, CA. Participants can choose from various distances, including a 50K, Trail Marathon, Half Marathon, and shorter options down to a Kids Run. The course features scenic si..

The Horseshoe Lake Half Marathon is a scenic running event taking place in La Honda, California, featuring a 13-mile course that offers stunning views of both the Pacific Ocean and San Francisco Bay. The route combines single-track trails and fireroads, with a total ascent of 2230 feet, making it su..