Denver Colfax Marathon

This is Denver's ultimate urban tour - abbreviated. Epic stadium run through. Downtown Denver. Confluence and Cherry Creek, 17th Avenue to City Park - and one big afterparty with 10,000 of your closest friends.

Run Denver’s springtime marathon and experience the ultimate urban tour of the Mile High City! 26.2 mile Marathon through the stadium, downtown and along 7 miles of water - 13. 1 mile Half Marathon through Denver Zoo - the fast Urban 10 Miler - 5-person Marathon Relay - or the Colfax 5K in City Park. Run for more than 100 charities! May 17-18, 2014. Choose your event at runcolfax.org.

Run the wildest race in Denver! The Colfax Half Marathon is the only race to run through Denver Zoo - past the cheetahs, elephants and rhinos! Run for more than 100 charities.