Crestline
Trail Running Calendar near Crestline 2026-2027
Explore the top trail runs near Crestline for 2026-2027! We've gathered 14 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
Cirque Series at Mt Baldy on 10/03/2026 is an inaugural trail race featuring a 9.1 miles course with 3,926 ft of vertical gain and separate competitive divisions.
A two day trail race weekend in Big Bear Lake with five distances from 10.5 km to 161.4 km, varied climates, festival activities, 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 with an 8 hour loop format and a 6K on a 3.7 mile loop with about 600 ft gain per loop.
November 2026
December 2026
A Last Person Standing race in Yucaipa, CA on December 11, 2026 where runners complete hourly 4.167 mile loops until one competitor remains.
January 2027
24HR "The Grind" is a 24 hour individual and team loop race at Lake Perris CA featuring a repeated Molcajete 1.0 loop of about 4 miles with significant climbing.
April 2027
A 24 hour trail race on an approximately 5 mile loop in Big Bear City with aid stations, crew access at basecamp, and a 100 mile Burro Hundred challenge.
May 2027
Obstacle course weekend at Big Bear Mountain Resort with Sprint, Super, Beast, kids races, high-elevation terrain and an opportunity to earn a Trifecta in one weekend.
A 10K Spartan Trail run at Snow Summit in Big Bear featuring rocky, high altitude singletrack with technical climbs, scenic Southern Sierra views, and a three hour finish cutoff.
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.
September 2027
A 7+ mile trail race up Mt Baldy in the Angeles National Forest, rising from about 6,000 to 10,064 feet and organized by San Antonio Canyon Town Hall to support the local community.