Trail Running calendar near Foothill Ranch 2025-2026

We have found 71 Trailruns within 80 miles of Foothill Ranch. See below where and when you can find the races.

The Ramona Wine Country 5K is a unique running event held at BackCountry Gardens in Ramona, California. This scenic race features a challenging 1.5-mile loop course with natural obstacles including hills, streams, boulders, and mud, offering participants the option to complete one or two loops. Beyo..

May 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 Boney Mountain Trail Run is a scenic trail running event held in the Santa Monica Mountains, starting at Rancho Sierra Vista | Satwiwa National Park in Newbury Park, California. It features a challenging half-marathon course that includes creek crossings, single-track climbs, and stunning ocean..

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 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-..

June 2026

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 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..

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..

November 2026

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..