Countdown until the Marathon

Registration for Marathon Weekend Opens in August! --- Denver 5K on the Runway sold out... fast

Registration opens SOON for Marathon Weekend.  The First 500 to register will get the lowest pricing.   Click here to be on the early notification list.

The new Denver 5K on the Runway just sold out – in less than one day!.   2500 runners are in for a once-in-a-lifetime experience.

Thank you to all of our May Denver Colfax Marathon runners.  We had a terrific time hosting you this past weekend.   Our 2022 highlights video is ready! 

Save the date May 21, 2023.  Registration will open August 2022.


Denver Colfax Marathon Weekend Details