Colorado Race Calendar Hardrock 100 Endurance Run

Hardrock 100 Endurance Run

Name: Hardrock 100 Endurance Run
Start: 2025-07-12
Location: Silverton, Colorado

Date Jul 2025 (TBD)

Distance Ultra, 100mi

Course Type Trail

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RunGuides Race Facts

Silverton

Race Size: 100 - 500

Elevation: Lots of Hills

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Race Information

The Hardrock Hundred Mile Endurance Run is an ultramarathon of 100.5 miles in length, plus 33,050 feet of climb and 33,050 feet of descent for a total elevation change of 66,100 feet, at an average elevation of over 11,000 feet. The run is held on a loop course on 4WD roads, dirt trails, and cross country in Southern Colorado's San Juan Range, USA

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