Arlington Heights
Trail Running Calendar near Arlington Heights 2026-2027
Explore the top trail runs near Arlington Heights for 2026-2027! We've gathered 29 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
The 61st Mt Baldy Run to the Top on September 7, 2026 is a fundraising mountain trail race in the Angeles National Forest covering about 7 miles with 4,000 feet of ascent to the 10,064 foot summit, with proceeds aiding local services.
A Stadion obstacle race at Angel Stadium of Anaheim on September 12, 2026, featuring a 5 km course with 20 obstacles plus a kids race and spectator options.
Two days of Spartan obstacle races at Lake Elsinore Raceway near Temecula, featuring Sprint and Super distances, kids races, Hurricane Heat options, and spectator access.
October 2026
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.
Annual mud run in San Bernardino with a 5K for individuals and teams and a 1K kids race on October 10, 2026.
Wildwood Canyon Trail Run in Yucaipa, CA on October 24, 2026 offers an 8-hour loop challenge and a 6K on a 3.7 mile course with about 600 ft gain per loop.
A multi-distance trail event at Lake Perris, CA featuring 10, 20, 50, 100 and 200 mile options, technical terrain, group camping, and cash prizes for 100 and 200 mile podiums.
Trail races at Caspers Wilderness Park on October 31, 2026 offering 10K, half, 35K, marathon and 50K on well marked singletrack and fire road.
November 2026
Fixed-time 3, 6, and 8 hour trail runs on an approximately 2.75-mile loop at O'Neill Regional Park in Trabuco Canyon with a main aid station and about 500 feet gain per lap.
One mile loop ultra on hardpacked dirt with timed 3, 6, 12 and 24 hour options plus relay teams. Live chip timing, free on course camping, continuous food service, and a 31 hour buckle challenge to reach 100 miles.
December 2026
A nighttime Last Person Standing event in Yucaipa where runners repeat a 4.167 mile loop each hour until one person remains; limited camping is available.
January 2027
SoCal Spartan Trifecta Weekend at Lake Perris offers 5K, 10K, 21K and kids obstacle races on a flat, fast course in a mountain rimmed park.