Glendora
Trail Running Calendar near Glendora 2026-2027
Explore the top trail runs near Glendora for 2026-2027! We've gathered 41 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
Cross country invitational on September 5, 2026 at John Glenn High School, co hosted by Cerritos and John Glenn, with in person and virtual open races.
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.
Evening trail relay and 5K at Griffith Park featuring team relays, a 1K kid run, live music, golden hour photos, medals, and awards.
At U.S. Bank Tower participants climb 75 floors or take a self-guided urban hike to support Ketchum Downtown YMCA programs, then gather for a block party with music and food.
A chip timed 5K trail run and walk at Ascot Hills Park with city views, finisher shirt and medal, live results and community activities.
Trail ultras from the Mt. Wilson summit offering 25K and 50K routes on technical single track with stocked aid stations and awards for top finishers.
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.
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.
A 5K event in Los Angeles on October 25, 2026 to raise funds for dyslexia education, offered both in-person and virtual with a flat one loop course and free parking.
November 2026
Night trail races at Marvin Braude Mulholland Gateway Park in Tarzana offering 5K and 10K on fire roads with aid stations and required headlamps.