Fourmidable

The Mississippi Bar Trail Run, hosted by the Fair Oaks Recreation & Park District, is an annual trail running event held in Fair Oaks, California, on the north shore of Lake Natoma. The race features scenic courses through wetlands, oak-studded bluffs, and historic gold mining terrain. Participants..

The Cool Moon Trail Races, held in Cool, California, offer a variety of distances including 100K, 50-mile, 25-mile, 13.5-mile, 11.5-mile, and 5K races. The course features two main loops: a 13.5-mile North loop and an 11.5-mile South loop, combining single track trails and fire roads with scenic vie..

The Cool Moon 100 Mile Endurance Run is a challenging ultramarathon held in Cool, California. The race features a 100-mile course composed of four loops of two distinct trails: a 13.5-mile North loop and an 11.5-mile South loop, combining single track and fire roads with a total elevation gain of ap..

Blood, Sweat & Beers is a trail running event held in Auburn, California, nestled in the scenic American River Canyon. The race offers two challenging distances: a Long Course of 10.5 miles with over 2,470 feet of elevation gain and loss, and a Short Course of 5.9 miles with approximately 860 feet o..

The Folsom 100 is an exhilarating 100-mile ultramarathon that takes place around Folsom Lake, California. Scheduled for August 1, 2025, this challenging race features a point-to-point course with a single out-and-back section. Participants have 34 hours to complete the loop, which includes stunning..

The Trail Run at Sly Park - Summer is a scenic trail running event held at the Sly Park Recreation Area in Pollock Pines, California, within the El Dorado National Forest. The race offers multiple distances including 5K, 10K, 8 Mile, Half Marathon, 17 Mile, Trail Marathon, and a 50K ultra. Courses w..