DENVER — The Colfax Marathon is running for the first time in 29 months. The Denver race, which typically happens in May, was canceled in 2020 and delayed to October this year. This is the largest running weekend in the Rockies that includes a Marathon, Half Marathon, Urban 10 Miler, Marathon Relay and 5K.

With the Broncos having a home game on Sunday, the 15th annual Colfax Marathon will have its main Race Day – Marathon, Half Marathon, Urban 10 Miler and Marathon Relay on Saturday. The 5K will take place on Sunday.

The next Colfax Marathon will return to its traditional date of Sunday May 15, 2022 for its 16th edition.