Trail Running calendar near Arlington Heights 2025-2026

The Angeles Crest 100 is a classic 100 mile point to point mountain ultramarathon across the San Gabriel Mountains with over 21,000 feet of climbing. Held Oct 3, 2026 from Wrightwood to Altadena, entry is by lottery.

That's No Moon is a rugged trail race in the Cleveland National Forest near Silverado CA on Oct 10, 2026, with 50 mile, 50K and 30K options across remote single track and serious climbing. Expect technical terrain, aid stations, and require..

Run a Native organized fundraiser on the Cahuilla Reservation in Anza supporting youth and family programs. Choose from 100 mile, fixed time races and shorter distances on a runnable 2 mile dirt loop with handcrafted awards and buckles.

Lake Hodges Trail Festival is a two day trail and multi sport weekend around scenic Lake Hodges with races from a kids mile to a 50K and a run bike run duathlon. This cupless event rewards finishers with a handcrafted wooden medal and tri b..

Test your limits at SPACEROCK in Vasquez Rocks on October 17, 2026 with looped trail options from 5K to a Half Marathon+ just under 14 miles and 3,200 feet of climbing. Expect rocky single track, a 500 foot Black Hole tunnel and cupless aid..

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.

Join the Third Annual SCTC 5K Turkey Trot on Thanksgiving in Santa Clarita Central Park, a scenic hilly 5K with a 1K kids run. Support Santa Clarita Track Club as runners of all ages race for a great cause.