Colfax Marathon
Denver, Colorado, United States
May 16-17, 2026 - Saturday to Sunday
5k, 10mi, Half-marathon, Marathon, Relay
Race Report
Inside look at what it's like to run the Colfax Marathon
Colfax Marathon Recap 2024
Race Information
The Colfax Marathon is Denver's largest running weekend. Runners get to pick from the marathon, marathon relay, half marathon, or urban 10 miler and enjoy Denver’s iconic landmarks. Just getting started on the running scene? There's a 5k for that. Finish your 26.2 into a huge post-race party with live music, food, & drinks.
A Boston Marathon qualifier, the Colfax Marathon should be on the bucket list for every runner!
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👍 Run Pick of the Month: Colorado Springs Marathon
📍Colorado Springs - Saturday October 3, 2026
💸 SAVE 10% On Your Entry. Use Code RunGuides
😄 Why We Like This Run
✅ Scenic point-to-point course
✅ Multiple distances, including kids run
✅ 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.
Free Plan for Beginner Runners
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Race Facts
Race Size: 10,000+
Elevation: Some Hills
Course Type: Road
Boston Qualifier: Yes
Kids Run: No
Where to Stay
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