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Trail Running Calendar near Glendora 2026-2027

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Explore the top trail runs near Glendora for 2026-2027! We've gathered 42 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2027
Oct
2
Sa

Angeles Crest 100 Mile Endurance Run

Trail Run 63 mi 101 mi
A 100 mile loop race through the San Gabriel Mountains with an added 100K held on the same day.
Oct
16-17
Sa - Su

Ruff Run California

Obstacle Run 4 km
A two-day obstacle event for people and their dogs on a 20 acre course in Phelan, CA, featuring over 20 obstacles plus an after party with music and vendors.
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