Trail Running Calendar California 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..

Lost Sierra Endurance Race, presented by Bad Luck Run Club, takes place in the Sierra Nevada high country around Downieville, California. Runners choose from 25K, 50K, or 100K. The 100K is an out-and-back epic, starting in Downieville, climbing toward the Sierra Buttes then north to Plumas-Eureka St..

Badwater 135 Ultramarathon, staged in Death Valley, runs from Badwater Basin—the lowest point in North America—to Whitney Portal near Mt. Whitney, California. The 135-mile (217 km) non-stop course climbs three mountain ranges, with about 14,600 ft of total ascent and 6,100 ft of descent.The brutal h..

Skyline 50K Endurance Run is one of the oldest continuously running 50k races in the United States. The course starts and finishes at Lake Chabot Marina in Castro Valley, California, and follows a large loop through East Bay Regional Parks out to Skyline Gate. The event is popular with first-time ul..

Emerald Bay Trail Run is a 7-mile (11 km) point-to-point race in the Lake Tahoe region. The course begins at Eagle Point, circles Emerald Bay, and climbs the Rubicon Trail to DL Bliss State Park, finishing at Lester Beach. Runners traverse mostly single-track with moderate climbs and descents, and e..

Signal Peak Trail Runs take place near Bear Valley Group Campground, Nevada City, CA, with Emigrant Gap as a reference point. Organized by Sky Breaker Racing, the event offers two distances: 50K and 24 miles. The course is an out-and-back with a loop at the east end that summits Signal Peak for the..

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..