
RUNNERS REUNION
Runners Reunion (May 15-16, 2021)
- Choose the 5K, 10K, or 2 race combo
- For more info, go to Runners Reunion
Register Now

Denver Colfax Marathon
Denver Colfax Marathon (October 16-17, 2021)
- Marathon, Half, Urban 10 Miler, Marathon Relay, and 5K
- Relay Teams — The captain registers the entire team of 5 runners. Teams can be entered early at low pricing and runners can be added later. You can change/add runners for free until 30 days pre race weekend.

Denver Colfax Marathon Multiple Registrations
Denver Colfax Marathon (October 16-17, 2021)
Opens Spring 2021. Use this option if you are a company, a charity, or a government entity and you would like to pay for several registrations, and receive the codes for your captains or runners to register later. Email multiplereg@runcolfax.org to receive the link or to answer questions.
Registration opens Spring 2021