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Trail Running Calendar near Muscoy 2026-2027

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Explore the top trail runs near Muscoy for 2026-2027! We've gathered 19 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

August 2026
A free community run and expo in Los Angeles on August 29, 2026, featuring a 4 mile trail run, brand booths, a raffle and local vendors.
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 community 5K run and walk at Fontana Park on September 12, 2026 with a closed mixed paved and unpaved course, on-course water and finish-line refreshments.
October 2026
An annual 100 mile ultramarathon 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 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.
Trail event at Wildwood Canyon State Park featuring an 8 hour loop challenge and a separate 6K on the same 3.7 mile course.
A set of trail races at Lake Perris featuring a 200 mile route with over 44,000 feet of climbing, looped courses, group campground access and cash prizes.
November 2026
Trail races in Yucaipa CA with 21 mile, 10 mile and 4 mile options, significant elevation gain, and 10% of fees donated to local conservation.
December 2026
A Last Person Standing race in Yucaipa where runners repeat a 4.167 mile loop each hour until only one remains, organized by Yucaipa Adventure Company.
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.
A 24 hour loop race in Perris, CA with individual and four person team options on repeated Molcajete 1.0 laps of about 4 miles with significant climbing.
April 2027
A 24-hour timed trail race in Big Bear on an approximately 5-mile loop, featuring on-course aid, a 100-mile Burro Hundred challenge, and community trail stewardship.
May 2027
Two day Spartan obstacle weekend at Big Bear Mountain Resort in May 2027 with Sprint, Super, Beast and kids races at about 8,200 ft altitude.
Scenic 10K trail run at Big Bear Mountain Resort on May 16, 2027, with singletrack through high altitude pine forest, technical climbs, and 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.
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