Muscoy
Trail Running Calendar near Muscoy 2026-2027
Explore the top trail runs near Muscoy for 2026-2027! We've gathered 16 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
A 100 mile endurance trail race in the San Gabriel backcountry, scheduled October 3, 2026, using a lottery for entry and 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 two day mountain trail festival in Big Bear Lake offering five distances from 10K to 100M, varied terrain, and UTMB World Series Major status.
Annual mud run in San Bernardino with a 5K for individuals and teams and a 1K kids race on October 10, 2026.
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.
Experience the oak-studded hills and rugged canyons of Yucaipa in an 8 hour endurance loop or a fast 6K trail race.
Experience a technical trail challenge in Perris, CA, featuring a 200 mile ultramarathon and shorter distances during a festive Day of the Dead celebration.
November 2026
December 2026
Face a repeating 4.167 mile loop through the Yucaipa foothills in this December backyard ultra where only the last runner standing survives the night.
January 2027
Obstacle course weekend at Lake Perris with 5 km, 10 km, 21 km and kids races on January 23 and 24, 2027.
A 24 hour loop race in Perris, CA featuring the Molcajete loop, with individual and four person team options and awards for top finishers.
April 2027
A 24 hour timed trail race in Big Bear City on April 30 to May 1, 2027, run on an approximately five mile loop with a 100 mile Burro Hundred option.
May 2027
High-altitude Spartan weekend at Big Bear Mountain Resort with Sprint, Super, Beast and kids obstacle races plus a Trifecta option.
Scenic Trail 10K at Big Bear Mountain Resort with high altitude pine singletrack, technical climbs and wide views of the Southern Sierra.
August 2027
Mountain road and trail races at Green Valley Lake offering 5K, 10K and half marathon courses with aid stations, chip timing, and post-race community activities.