May 20-21, 2023
Join Denver’s largest running weekend. Choose the marathon, half marathon, urban 10 miler, marathon relay on Sunday or the 5K on Saturday. Pick a race on Sunday and add the 5K and you have Mile High Two Day Challenge.
Contact Information
HELLO! THANKS FOR STOPPING BY. WE’LL TRY TO CONNECT YOU TO THE RIGHT PERSON
- The best way to reach us is to email info@runcolfax.org
- If you’re interested in being a sponsor, email Melissa@runcolfax.org
- If you want to learn more about our Charity Partners Program, email charitypartner@runcolfax.org
- You can also find us on Facebook and Twitter @runcolfax
- To purchase multiple registration codes for your employees, charity runners, or large group, email multiplereg@runcolfax.org
Purchase multiple registration codes
Are you looking to purchase multiple registration codes for your employees, charity runners, or large groups?
Send us an email at multiplereg@runcolfax.org
Event schedule
- Sat, May 20, 2023 9:00 AM - Colfax 5K
- Sun, May 21, 2023 6:00 AM - Marathon and Marathon Relay
- Sun, May 21, 2023 6:30 AM - Half Marathon
- Sun, May 21, 2023 8:00 AM - Urban 10-Miler
Contact information
- Event contact
- Team Colfax
- info@runcolfax.org
- Website
- Visit website
