Super popular in 2019, it’s back again! Run an individual race on Sunday and the 5K on Saturday, and you’ll receive our Colfax 2-Day Mile High Challenge medal as well as your Sunday medal.
Want to do the 2 day challenge?
Not yet registered? Simply click here to register for the marathon, half or urban 10 miler. There is a question on the registration page asking if you’d like to join the Colfax Mile High Challenge. Check “yes”, and you’ll be set!
Already registered for Sunday and want to add the challenge? Simply click here to register for the 5K.
2 Shirts and 2 Medals
Yes – you receive 2 shirts and 2 medals! Pictured here is the 5K shirt from 2019.