Trail Running calendar near Brea 2025-2026

Hot to Trot in Los Angeles is hosted at Griffith Park’s Crystal Springs Picnic Area. The event offers 5k, 10k, 15k, and a half marathon. The course is an open dirt-trail loop system: 5k out-and-back; 10k and 15k are multi-loop formats; the half marathon uses three 4.36-mile loops.Runners share the t..

Elder Creek Night Runs takes place in Anza, California, on land belonging to the Cahuilla Band of Indians. The centerpiece is a 4.6-mile loop of single-track trails and wide dirt roads through manzanita and rock formations, with views of Cahuilla Mountain. Runners choose from four distances: 9 miles..

Angeles Crest 100 Mile Endurance Run, held since 1986, is a 100-mile point-to-point trail race from Wrightwood to Altadena in the San Gabriel Mountains north of Los Angeles. Runners tackle steep climbs and rocky terrain along a course ranging from 1,135 to 9,300 feet, preserving much of the original..

The Saddleback Marathon is a premier trail running event held in the Saddleback Mountains within the Cleveland National Forest near Silverado, California. Offering marathon, half marathon, and 10K distances, the race features challenging courses with significant elevation gains—4,244 feet for the ma..