Trail Running calendar near Whittier Narrows 2026-2027

Experience a scenic multisport event at Crystal Cove State Beach featuring swim legs in the Pacific Ocean and a closed bike course on the Pacific Coast Highway. Choose from triathlon duathlon aquabike or trail run options.

An evening trail event in Topanga with a timed 10k featuring about 1,360 ft of climbing and a non-timed 4.5-mile Hiker's Delight, plus aid stations, post-race amenities and shuttle-only parking.

An urban event in downtown Los Angeles with a stair climb up 1,664 steps at the U.S. Bank Tower, an Urban Hike past major cultural sites, a Heroes Challenge category, and a virtual participation option.

An obstacle course race weekend at Lake Elsinore Raceway with Sprint, Super, kids races, Hurricane Heat events, and spectator access on Sep 26-27, 2026.

A 3.1 mile trail event at Ascot Hills Park in Los Angeles with chip timing and views of Dodger Stadium and the Hollywood sign. Proceeds support the Wilson High School Fire and Police Magnet Cadet Program and Ascot Hills Park.

A trail ultramarathon at Mt. Wilson in the Angeles National Forest offering 25K and 50K courses on technical single track. Courses feature significant elevation gain, marked trails and fully stocked aid stations.

Bandit Ultra Trail in Simi Valley on September 26, 2026 offers 50K, 30K and 15K trail courses through Rocky Peak and Tapo Canyon. The event is based at Corriganville Park and includes multiple aid stations and varied terrain.

Double Peak Challenge in San Marcos on September 26, 2026 offers 10K, 5K and a free Kids Trot plus a race expo and awards.

A themed run in Long Beach on September 27 with Half Marathon, 10K, 5K, a family mile and kids dash, ocean views, chip timing and a pizza themed finish line festival.

A 100 mile endurance run through the San Gabriel backcountry, held since 1986; the 2026 edition uses an out and back course from Loma Alta Park.

A 9.1 mile loop from the Mt Baldy ski area to the 10,064 ft summit of Mt San Antonio via exposed ridgeline and technical alpine trails, then back to the parking lot. The race is capped at 500 runners.

A 5K on shaded eucalyptus horse trails at Ernie Howlett Park in Palos Verdes Peninsula on October 4, 2026. In person and virtual options are available, plus a fundraising route that waives the fee with at least $100 raised for Strides in Re..

The ABWR Half Marathon - Valencia will take place in Santa Clarita on Sunday 4 October 2026. You can run between 5 and 13 miles.

Haunted Heroes in Valencia on October 4, 2026 offers 5k, 10k, 15k and a half marathon on looped trails with aid stations each loop; registration includes a finisher medal and free photos.

A two-day mountain trail festival in Big Bear Lake with five race distances, varied alpine and desert terrain, UTMB World Series Major status, and opportunities for qualification to major trail events.

Trail races of 50 miles, 50K and 30K in Cleveland National Forest near Silverado, CA, featuring remote forest roads, significant elevation gain and staffed aid stations. Mandatory self support rules include minimum water and required lights..

Annual mud run in San Bernardino with a 5K for individuals and teams and a 1K kids race on October 10, 2026.

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.

Trail running at Vasquez Rocks Natural Park in Aqua Dulce, CA with 13.9 mile, 15K, 10K and 5K race options on October 17, 2026.