Trail Running calendar near Descanso 2025-2026

The Windfall Full Moon Trail Run, held in Alpine, California, offers a unique nighttime trail running experience under the bright full moon. Participants can choose from four distances: 5K, 10K, 15K, and 30K, with courses marked by reflective markers on private single-track trails featuring varied t..

The Lake Calavera Trail will take place in Carlsbad on Sunday 10 August 2025. You can run 4 miles.

The South Bay 24 will take place in San Diego on Friday 15 August 2025. You can run between 13 and 24 kilometers.

The Noble Canyon 50K and 15K is an annual trail running event held in the scenic mountains of east San Diego, California, specifically in Pine Valley. The races take place on runnable single-track trails within National Forest land, offering participants stunning views and challenging terrain. The 5..

The Double Peak Challenge is a distinctive outdoor running event held in San Marcos, California, featuring a challenging 10K race, a 5K fun run, and a Kids Trail Trot. The 10K course is known for its demanding elevation gain of 1,176 feet, culminating at Double Peak's summit at 1,558 feet, offering..

The Chupacabra Night Trail Run, organized by Imperial Valley Running Events, takes place in Ocotillo, California. This unique event offers runners two distance options: an 8-mile and a 25K night trail run. The course begins near Interstate 8 and Dunaway Road, providing a challenging trail experience..

The Cuyamaca 100K is an ultramarathon held in Cuyamaca Rancho State Park near Julian, California, about an hour east of San Diego. The race features a challenging 100-kilometer course composed of three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park'..

The Carmel Valley Trail Race will take place in San Diego on Saturday 11 October 2025. You can run between 5 and 15 kilometers.

Live Oak Odyssey is a fixed-time trail running event held at O'Neill Regional Park in Trabuco Canyon, California. Participants choose between 3-hour and 6-hour races on a scenic 2.75-mile loop featuring approximately 500 feet of vertical gain per lap. The course offers a mix of uphills, downhills, s..

The Cahuilla Rez Ultra, held on the Cahuilla Indian Reservation in Anza, California, offers a unique running experience with distances including a 100-mile race, 24-hour, 12-hour, 6-hour events, a half marathon, and a Tribal Member 5k. The ultra races feature a 2-mile loop on double track dirt roads..

The Encinitas Beach Run will take place in Encinitas on Sunday 19 October 2025. You can run between 5 and 10 kilometers.

Caspers Trail Races, held in San Juan Capistrano, California, offer a variety of distances including 10K, 13.2 miles, 30K, marathon, and 50K. This trail running event is known for its well-supported and clearly marked courses, providing a safe and enjoyable experience for participants. The races tak..

The Machete Muertos 200 is an ultramarathon event held at Lake Perris, California, featuring multiple race distances including 10, 20, 50, 100, and 200 miles, plus a 20-mile ruck division. The course consists of challenging loops with significant elevation gains—2,300 feet per lap for shorter distan..

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

The Mount Laguna Trail Marathon, held in Mount Laguna, California, is a well-organized Southern California trail race featuring a challenging single-loop course of technical single-track trails. The marathon covers rolling terrain with a total elevation gain of 3,358 feet. The first half of the cour..

The Sri Chinmoy 6-Hour Race in San Diego is a timed endurance event held on a scenic 5-mile asphalt loop around Lake Miramar. Participants run or walk clockwise around the mostly flat course with gentle hills, sharing the path with pedestrians and cyclists in separate lanes. The race welcomes all pa..

The RD Trail Half Marathon will take place in Tijuana on Sunday 16 November 2025. You can run between 10 and 21 kilometers.

Boundiful Endurance Runs take place at Washburn Ranch in Hemet, California, featuring a one-mile loop on a 100% hardpacked dirt surface through a Southern California fruit and nut farm. The event offers multiple race options including 3, 6, 12, and 24-hour runs, a 100-mile solo challenge, and relay..

The Black Mountain Turkey Burner Trail Race, held at Black Mountain Community Park in San Diego, CA, is a challenging and technical trail running event. Part of the ERS Sunshine Series, it features a half marathon with significant hill climbs on rugged trails, alongside 10K and 5K races on less tech..

The Anza Borrego Cuyamaca 50 Mile Run is a challenging point-to-point ultramarathon held in San Diego, California. Covering 50 miles, the course traverses scenic trails from the Sunrise Trailhead through Cuyamaca Rancho State Park, including an ascent of Stonewall Peak and wooded paths near the lake..