Trail Running calendar near San Diego 2025-2026

The Dingneng Wang event, held in San Diego, CA, is a non-competitive marathon along the Los Penasquitos Canyon Trail. Formerly known as the PQ & GZ Trail Marathon, it was renamed to honor Dingneng Wang, a beloved runner and outdoor enthusiast. The course is a clockwise loop with a total distance of..

The San Diego 100 is a challenging 100-mile ultramarathon held in the mountainous east county of San Diego, California, starting and finishing at Lake Cuyamaca Recreation Area. The course is a 90% single-track loop featuring rugged terrain with approximately 15,400 feet of elevation gain and loss. I..

The O'Neill Park Trail Races, held in Trabuco Canyon, California, offer a scenic and challenging running experience through the beautiful trails of O'Neill Regional Park, a notable gem in South Orange County. The event features multiple race distances including 10K, half marathon, 30K, marathon, and..

The PCT 50 is a 50-mile trail running event held in the Cleveland National Forest, east San Diego County, California. The race follows an out-and-back course primarily on single-track trails along the Pacific Crest Trail. Runners experience challenging climbs, especially on the outbound leg, with el..

The Black Mountain Trail Races, held in San Diego, California, feature challenging 50K, 25K, and half marathon trail runs. The event takes place on scenic trails that honor the land of the Kumeyaay People, emphasizing respect for the area's cultural heritage. The 50K course has recently been updated..

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..