Trail Running calendar near Los Angeles 2026-2027

A community mud run in San Bernardino on October 10, 2026, featuring a 5K with individual and five person team options plus a 1K children's race. The event includes water stations, a rinse area, vendors, and awards.

Trail 5K and 10K at Chino Hills State Park on October 10, 2026. Registration runs April 6 to August 15 and includes race photos, a shirt and a finisher patch.

Ruff Run California on 10/17/2026 in Phelan, CA presents a 20 acre obstacle course for people and their dogs with over 20 obstacles, 4K and 1K options, and an after party with music, games and vendors.

Run through the iconic rock formations and canyons of Vasquez Rocks Natural Area Park. This cupless trail event features unique terrain and distances ranging from 5K to an Ultra Half Marathon.

A trail running event in October at Hahamongna Watershed Park offering 5K, 10K and a hilly half marathon across mixed single track and fire roads.

Wildwood Canyon Trail Run on October 24, 2026 in Yucaipa, CA features an 8-hour loop on a 3.7 mile course with about 600 ft climb per loop and a separate 6K on the same trail; aid stations and vendors are provided.

Trail races in Agoura, CA organized by SoCalTrail, featuring a 50K ultra, a half-marathon and a short trail distance through Chesebro Canyon with varied singletrack, fire roads, aid stations and finisher medals.

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 in San Juan Capistrano across multiple distances including 10k, half marathon, 35k, marathon and 50k. The event features marked courses, aid stations and participant merchandise.

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..

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.

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.

Live Oak Odyssey is a fixed time trail running event at O'Neill Regional Park offering 3, 6 and 8 hour looped runs on a roughly 2.75 mile loop with about 500 feet of elevation gain per loop and a main aid station.

A trail event on November 14, 2026 in Yucaipa, CA offering 21 mile, 10 mile, and 4 mile courses through the Crafton Hills. Ten percent of registration fees support the Crafton Hills Open Space Conservancy.

Trailsgiving at Elysian Park on November 14, 2026 features marked out and back trail routes on hard packed dirt with hills. Distances include 5k, 10k, 15k, and a half marathon with on-course aid and finisher medals.

The 30th annual Patagonia Salmon Run takes place in Ventura on November 15, 2026, as a 5K (listed at 3.14 miles). Online registration is required, the event aims for zero-waste, and a Patagonia store discount is available to bib holders.

Multiple distances including 5k, 10k, 15k and a half marathon take place at Whittier Narrows on November 15, 2026. The marked course uses out and back loops and features an aid station at the turnaround.

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 trail race in Griffith Park, Los Angeles on November 21, 2026 offering multiple distances from 10k to 50K. Organized by Keira Henninger Events with registration closing November 18 and listed entry fees from $103.43 to $189.87.

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.