Trail Running calendar near Rancho Santa Margarita 2025-2026

O'Neill Park Trail Races is a multi-distance trail running event held in O'Neill Regional Park, near Trabuco Canyon, California. The race offers 50k, Marathon, 30k, Half Marathon, and 10k courses, described as spectacularly beautiful and a gem of South Orange County. Participants can pre-pick bibs a..

The Gorgonio View Trail Run takes place at Big Bear Mountain Resort in Big Bear Lake, California, a renowned mountain training ground in Southern California. The event features a scenic 10K trail race through picturesque high-altitude pine forests, with smooth singletrack trails alongside challengin..

The Nanny Goat race, held at a private horse ranch in Riverside, California, offers a unique ultrarunning experience over Memorial Day weekend. Participants can choose from distances of 6, 12, 24 hours, a 100-mile solo race, or a 24-hour relay for teams up to four runners. The course is a flat, one-..

The Malibu Canyon Trail Races, held at Point Mugu State Park in Malibu, California, offer a variety of challenging trail running distances including 100K, 50-mile, 50K, 30K, and a newly added half marathon. This event, presented by Keira Henninger, takes place in a scenic natural setting known for i..

Pacific Crest Trail 50 (PCT 50) is a 50-mile out-and-back trail race in Cleveland National Forest, east San Diego County, California. It’s part of the SoCal Ultra Grand Prix Series. The mostly single-track route follows the Pacific Crest Trail with significant climbs, beginning near 3,000 feet and t..

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..