Get moving and raise funds for Denver Kids when you register to run in the 2021 Denver Colfax Marathon—the ultimate urban tour of Denver! To get started, register to run at, then enter the race of your choice—Marathon, Half Marathon, Urban 10 Miler, Relay, OR run/walk the 5k—and select Denver Kids as your charity partner at checkout. If you have already registered, you can still log back in and select Denver Kids.

From there, we’ll set up your fundraising page, provide fundraising instructions, and stay in touch throughout the entire process. For questions, reach out to

The main race day (Marathon, Half Marathon, Urban 10 Miler and Marathon Relay) will take place on Saturday, October 16. The 5K will be Sunday, October 17.