Trail Running calendar near Agua Dulce 2026-2027

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.

9.1 miles to the Mt San Antonio summit with 3,926 ft vertical gain on steep, exposed mountain trails; course capped at 500 entrants in Angeles National Forest.

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..

Multiple race distances start and finish at Sam Lynn Ballpark in Bakersfield, featuring mixed terrain on paved and dirt trails and a notable climb on the half. Aid stations, race day services, post race refreshments and awards are provided.

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

Halloween themed 5k, 10k, 15k and half marathon at West Creek Park in Valencia on October 4 with looped courses, aid stations, medals and race day registration.

Trail races in Cleveland National Forest offering 50 mile, 50K and 30K courses with significant elevation gain, staffed aid stations, drop bags, pacer rules and mandatory self sufficiency.

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.

A community Breast Cancer Awareness 5K at Hart Park in Bakersfield on October 10, 2026, featuring a scenic park course and post-race food, music, sponsor booths, and giveaways. Registration includes a performance T-shirt, finisher medal, me..

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.

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.

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

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.

Three off-road trail distances at Rio Bravo Ranch with aid stations, mandatory trail gear and a First Responder Challenge for agency teams.

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.