Trail Running calendar near Brea 2025-2026

Experience scenic singletrack and natural terrain at Hahamongna Watershed Park in Pasadena with options for a trail half marathon, 10K, or 5K on Sunday, October 18, 2026. Perfect for trail runners seeking a challenging yet runnable course.

Tackle scenic singletrack at Caspers Wilderness Park in San Juan Capistrano on October 24, 2026. Choose from 10k, half marathon, 35k, marathon, or 50k for a day of trails, views, and strong community vibes.

Push your limits at the Wildwood Canyon Trail Run, an 8 hour timed event in Yucaipa on a scenic 3.7 mile loop with about 600 feet gain per lap. Aid stations, live bluegrass and a brewery afterparty add festival fun.

Machete Muertos 200 at Lake Perris CA, Oct 28 to Nov 1 2026, is a multi distance trail festival from a scenic 10 mile loop to a rugged 200 mile ultramarathon. Expect technical terrain, huge elevation gain, a 20 mile ruck division and campgr..

Run scenic, rugged trails in Cleveland National Forest at the Saddleback Marathon in Silverado on November 7 2026. Choose marathon, new 25k, half or 10K courses with big climbs and sweeping canyon views, racing out of Black Star Canyon for..

Run the scenic Catalina Island trail through Avalon, past the historic Wrigley Mansion and up to summit vistas over the Pacific. Choose a challenging half marathon, a hilly 10K, a kids fun run, or tackle the Triple Crown challenge.

Tackle the iconic Backbone Trail Ultra in the Santa Monica Mountains: a rugged 68 mile route with about 13,600 feet of climbing and a scenic finish on the Ray Miller Trail. Solo runners with 50 mile experience or teams of 2 to 4 can enter;..