Garin Park XC Challenge

The SPASM Crystal Springs Trail Run takes place in Woodside, California, at Huddart Park, offering runners a scenic experience through towering redwoods, lush ferns, and trails in Huddart Park, King's Mountain, and Bear Gulch. The event features multiple distances: 8K, Half Marathon, 35K, Marathon,..

The Stevens Creek Striders Reservoir Run, held in Cupertino, California, offers a scenic trail running experience with distances of a half marathon (13.2 miles), 11K, and a 2.5-mile Lollipop Loop charity run/walk. The course features shaded single-track trails and open ridge vistas, with challenging..

The Diablo Trail Run takes place at Mount Diablo State Park, Mitchell Canyon Trailhead in Clayton, California. It offers distances of 4 miles, 10 miles, half marathon, marathon, 50K, and a Kids Run. The course ranges from a 4‑mile flat section to mountainous, scenic routes for longer distances, with..

South Hills Single Track Trail Run at Calero County Park, near San Jose, California, offers a Summer edition with a wide distance menu: Kids Run 1 mile, 5K, 10K, 9 Mile, Half Marathon, 16 Mile, Trail Marathon, and 50K. The course blends single-track and dirt roads through oak-studded hills with pano..

Berkeley Trail Adventure is a trail-running event in Berkeley, CA, spanning Tilden Regional Park and Wildcat Canyon. Distances offered are 10K, Half Marathon, 35K, and 50K, with a race cap of 330 runners. The course is mostly technical dirt trails and non-technical fire roads, with about 1.5 miles o..

The Mt. Umunhum Marathon, Race to the Top and Down, is a challenging trail running event held in Almaden Quicksilver County Park, San Jose, California. This marathon features a rugged course that begins at the Hacienda Entrance and ascends to the summit of Mt.Umunhum, one of the prominent peaks in t..