Hardrock 100 Endurance Run

Silverton, Colorado, United States

Jul 10, 2026 - Friday

100mi, Ultra

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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

πŸ‘ Run Pick of the Month: Colorado Springs Marathon

πŸ“Colorado Springs - Saturday October 3, 2026

πŸ’Έ SAVE 10% On Your Entry. Use Code RunGuides

πŸ˜„ Why We Like This Run
βœ… Scenic point-to-point course
βœ… Multiple distances, including kids run
βœ… Premium swag & finisher medals

Experience the ultimate running tour of Olympic City USA. Whether you’re chasing a personal best or crossing your first finish line, the Colorado Springs Marathon offers an unforgettable race day backdropped by the majestic Rockies.

We aren't kidding when we say this race is a local favorite. The Colorado Springs Marathon has sold out 5 years in a row! Don't be the one watching from the sidelines. Secure your spot on the starting line today and prepare to elevate your run.

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Race Facts

Race Size: 100 - 500

Elevation: Lots of Hills

Course Type: Trail

Boston Qualifier: No

Kids Run: No

Where to Stay

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