Fontana
Trail Running Calendar near Fontana 2026-2027
Explore the top trail runs near Fontana for 2026-2027! We've gathered 20 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.
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.
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 running event in Silverado, CA on November 7, 2026 offering marathon, new 25k, half marathon and 10K routes out of Black Star Canyon.
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.
July 2027
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.