Blue Sky Trail Marathon

Fort Collins, Colorado, United States

Oct 17-18, 2026 - Saturday to Sunday

Half-marathon, Marathon

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Race Information

Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the course takes you on a north-south tour of the easternmost hogbacks of Northern Colorado’s mighty Front Range. With 3,500 feet of elevation gain and an equal amount of elevation loss, the route offers a little bit of something for everyone. It is designed to appeal to both veteran trail runners and those looking to experience their first trail racing adventure. 

The course is 100% dirt and 90% sweet Colorado singletrack. The terrain ranges in difficulty from smooth dirt trail to technical rock gardens.

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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