Trail Running calendar near Orange 2026-2027

A trail event at Hahamongna Watershed Park offering 5K, 10K and a half marathon with marked courses, chip timing, aid stations and commemorative wooden medals.

A 200-mile, multi-day endurance run around San Diego County with an 82-hour cutoff, required crew support, rugged terrain, and a limited 24-runner field.

Trail event at Los Coyotes Reservation with a 3.1 mile loop plus timed 6H and 24H ultras on a 15.7 mile course, with camping and village amenities.

Trail team relay at Los Coyotes Reservation in the Anza-Borrego area on Oct 23 to 24, 2026, featuring several team formats and a 112.8 mile course.

At Wildwood Canyon State Park in Yucaipa, the event offers an 8 hour timed loop and a 6K on a 3.7 mile loop with about 600 ft vertical gain.

Trail races in Agoura, CA offering 50K, half marathon and 10K on Chesebro Canyon terrain with stocked aid stations, medals and post race food

A multi-distance ultramarathon at Lake Perris featuring 10, 20, 50, 100 and a demanding 200 mile race with looped courses, aid stations, camping and cash prizes for top finishers.

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 and new 25k in Silverado, CA with routes from Black Star Canyon through Mariposa Reserve and significant elevation gain.

Night trail races of 10K and 5K at Marvin Braude Mulholland Gateway Park in Tarzana with mandatory headlamp and marked courses.

Run through the historic streets of Avalon and the rugged interior trails of Catalina Island. Choose between a half marathon, 10K, or kids fun run featuring stunning Pacific Ocean views and island landmarks.

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.

Trail event in Yucaipa with 21, 10, and 4 mile courses; 10% of registration fees support the Crafton Hills Open Space Conservancy.

Trailsgiving in Elysian Park offers 5k, 10k, 15k and a half marathon on marked out and back trail loops with on course aid and finisher medals.

Looped 5k, 10k, 15k and half marathon on the shared park trails of Whittier Narrows in South El Monte on November 15, 2026.

An obstacle and mud-focused 5K at Oak Canyon Park in Irvine on Nov 21, 2026, featuring mud pits, walls, ropes, a festival village, and packet pickup the day before.

Trail running event in Griffith Park, Los Angeles on Nov 21, 2026, offering multiple distances from 10K to 50K and organized by Keira Henninger Events.

A Thanksgiving Day community run in Santa Clarita offering a 5K cross country course through Central Park and a 1K for children. The event benefits the Santa Clarita Track Club and awards medals to the first 600 competitors.

Thanksgiving morning trail races in Los Angeles with a half marathon, 10k and 5k through the Santa Monica Mountains, finishers' medals, aid stations and a beer garden.