Trail Running calendar near San Diego 2026-2027

A trail event at Los Coyotes Reservation on October 23-24, 2026 offering a 3.1-mile Yellow Loop and timed 6H and 24H ultra options across desert and alpine trails, with on-site camping, food trucks, and festival amenities.

A team trail relay at Los Coyotes Reservation on October 23-24, 2026 covering 112.8 miles and 23,800 feet elevation gain with camping and village amenities.

A multi-distance trail event at Lake Perris featuring 10, 20, 50, 100, and 200 mile courses, substantial elevation gain, aid stations, pacer rules, group camping, and cash prizes for 100 and 200 mile podiums.

Trail races at Caspers Wilderness Park on October 31, 2026 offering 10k, half marathon, 35k, marathon and 50k routes with marked courses and event support.

A trail event at Crystal Cove State Park on October 31, 2026 featuring a 4 mile loop with about 700 feet of climb per lap and ocean ridge views. The race is USATF sanctioned and part of the Southern California UltraRunner's Grand Prix Serie..

Trail marathon in the Cleveland National Forest on Kumeyaay Lands held Sunday November 1, 2026; registration opens August 8, 2026 on UltraSignup.

A trail event in Silverado, CA, with marathon, 25k, half and 10k courses routed from Black Star Canyon; the marathon has 4,244' of elevation gain and aid stations are placed along the route.

Fixed-time trail runs on an approximately 2.75 mile loop in O'Neill Regional Park with 3, 6 and 8 hour options through wooded canyons and varied terrain.

Roosters Backyard Ultra is a backyard-format race on November 14, 2026 in the San Diego area, featuring a smooth hard-packed trail with a gentle hill. The event allows dogs and car camping and has a registration deadline of November 1.

Terrain Race Irvine is an obstacle and mud focused 5K at Oak Canyon Park on November 21, 2026, featuring mud pits, walls, ropes and 11+ obstacles, plus pre race packet pickup and a post race festival with food, music and vendor booths.

A November trail event at Black Mountain Ranch Park offering a Half Marathon, 10K and 5K on 100% dirt with single track and significant climbing. Field size is limited to 300 and the race is an ERS Championship qualifier.

One mile loop ultra on hardpacked dirt with timed 3, 6, 12 and 24 hour options plus relay teams. Live chip timing, free on course camping, continuous food service, and a 31 hour buckle challenge to reach 100 miles.

A 50 mile point to point trail race through Cleveland National Forest and Cuyamaca Rancho State Park, featuring Stonewall Peak and Oriflamme Canyon. Aid stations, drop bag rules, shuttle options, and finish amenities at Stagecoach Trails ar..

A trail running event at Crystal Cove State Park in Newport Beach on December 12, 2026 offering 15K, 6K and a Kids 1K. The 15K includes a $2,000 prize purse and multiple aid stations on marked singletrack.

Trail races at Daley Ranch near Escondido with 10 Mile, 10K and 5K courses on single track and dirt roads; the 10 Mile reaches Stanley Peak for a 360 degree view and the event limits entries to 300 runners.

The Lunatic Loop 12 Hour Run will take place in Ramona on Saturday 12 December 2026.

Trail races in San Diego on December 20, 2026, including a marathon, half marathon, 10K, and a 6 hour hill-climb lap event. Costume awards and King and Queen of the hill titles are part of the day.

Experience a diverse trail running event in Escondido featuring everything from a 50 mile ultra to a stroller friendly 5k. Explore the valley floor or climb to the summit of Raptor Ridge in this cupless race series.

Two days of obstacle racing at Lake Perris with Sprint 5 km, Super 10 km, Beast 21 km and kids races on a flat, fast course with mountain views.

Trail races at Lake Hodges offering 50K, half, 10K, 5K and a combined Hercules DemiGod Challenge with varied elevation and mapped courses.