Chatfield Reservoir
Trail Running Calendar near Chatfield Reservoir 2026-2027
Explore the top trail runs near Chatfield Reservoir for 2026-2027! We've gathered 27 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2027
Trail races around Standley Lake in Westminster, Colorado offering five dirt-course distances with aid stations, drop bag access and live split tracking.
Trail marathon and half at Staunton State Park in Colorado featuring mostly singletrack, significant elevation gain, marked courses, stocked aid stations, and limited fields.
September 2027
All-Out Fall Fest on September 18, 2027 at Standley Lake in Westminster CO offers in-person and virtual Half Marathon, 10K, and 5K and benefits BookGive.
October 2027
A multi distance trail festival in Castle Rock featuring a Ridgeline 50K, shorter trail races and a family 1.2 mile adventure run with timing and post race amenities.