- This event has passed.
Colfax Marathon & Half Marathon
May 20 @ 6:45 am - 9:00 am
Ainsley’s Angels in Denver’s first confirmed race! Register with AAinDenver for the charity partner!
- Fast, flat and shady, the Colfax Half Marathon is the only race to run through Denver Zoo!
- Denver’s springtime half marathon takes runners on a one mile trek through the zoo, through historic neighborhoods, on eclectic Colfax, and through the Aurora Arts District & Aurora Fire Station #1.
- The LIVE Colorado Firefighter Calendar will cheer you on at Mile 11 – a runner favorite. Great mountain views along the way – and then a terrific after party in City park!