Trail Running calendar near San Marcos 2026-2027

Run under a full moon in the Anza desert. The event features four distances on a scenic 4.6-mile looped trail course. Participation is capped at 200 runners.

A mountain 5K, 10K and half marathon around Green Valley Lake, CA, featuring mixed paved and dirt surfaces, multiple aid stations, chip timing, race awards, and proceeds benefiting The Children’s Forest.

Explore the trails at the Riley Park Trail Races in Orange County's Thomas F. Riley Wilderness Park. With distances from a 5k to a 30k and a 6-hour event, there's a trail run for various goals. All finishers receive a shirt and a medal.

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.

Course Overview The Noble Canyon 50K & 15K are trail races set in the Cleveland National Forest in eastern San Diego County, California. The event is described as a Southern California trail classic offering a high-desert adventure thro..

This 21 mile trail run near Yucaipa is postponed from September 2026. The challenging course features over 4,300 feet of climbing on Crafton Hills terrain, with aid station support.

The 11th annual Double Peak Challenge features a 10K and 5K run from San Elijo Park up to the panoramic summit of Double Peak. A Kids Trail Trot offers a sprint for younger participants. All finishers receive a medal.

A seaside themed run in Long Beach offering 5K, 10K, half marathon and family distances with chip timing, free race photos, finish line pizza and a costume contest.

The Cuyamaca 100K traverses the scenic trails of Cuyamaca Rancho State Park east of San Diego. The three-loop course takes runners to Cuyamaca Peak and along the PCT. This event is a qualifier for the Western States 100.

That's No Moon Trail Races offer a rugged adventure on remote, challenging terrain in California's Santa Ana Mountains. Runners can choose from 50-mile, 50K, or 30K courses through the Cleveland National Forest. The event includes well-supp..

Run on the Cahuilla Indian Reservation in Anza, California, in support of tribal youth programs. Choose from ultra distances on a 2-mile loop or a half marathon tour of reservation roads. The event offers camping, real food aid, and a focus..

The Lake Hodges Trail Festival will take place in Del Dios from Saturday 17 October 2026 to Sunday 18 October 2026. You can run between 5 and 50 kilometers.

The Peak trail run in Julian, California, challenges runners with its 50K, Marathon, and Half Marathon courses. The routes climb Cuyamaca Peak on single-track trails, featuring significant elevation changes and mountain views. It is designe..

The San Diego 200 is a demanding 200-mile ultramarathon that loops around San Diego County, featuring diverse terrain from coast to desert. With an 82-hour cutoff, it requires a crew and is designed for seasoned ultrarunners. Profits from t..

A trail running event at Caspers Wilderness Park on October 24, 2026, offering 10k, half marathon, 35k, marathon and 50k courses. Courses are described as marked and supported, with an athlete guide and past results available.

Run an 8-hour loop course on a scenic 3.7-mile trail in Wildwood Canyon State Park. The event features an aid station, vendors, and live music. An after-party follows at a local brewery.

Machete Muertos 200 The Machete Muertos 200 is an ultramarathon event held at Lake Perris in Perris, California, from October 28 to November 1, 2026. It is associated with a Dia de Los Muertos (Day of the Dead) celebration. The event offers..

Trail events in the Pine Creek Wilderness with a wide dirt fire road course that climbs to a turnaround then returns downhill, offering a half marathon and a 10K, with parking at the Horsethief Canyon Trailhead.

The Saddleback Marathon is a trail running event taking place on November 7, 2026, in Silverado, California. It is held in the Trabuco District, with the race being rerouted to start from Black Star Canyon Road. The event offers four race d..

Challenge yourself on a beautiful 5-mile loop around Lake Miramar in this 6-hour timed event. Run or walk as many laps as you like, with aid stations and a secure gear area provided. All finishers receive a medal, T-shirt, and a post-race l..