Colfax 5K
May 17, 2025 @ 9:00 AM
Come join over 21,000 runners from all over the world in the Mile High City!
2 Days, 8 Races means a distance for everyone!
- 26.2 Marathon through the stadium, fire station, downtown, Sloan’s Lake, Colfax Ave, 7 miles of water
- 13.1 Half Marathon through Denver Zoo, Denver Fire Station, downtown, Colorado Firefighter Calendar on course
- Urban 10 Miler through the stadium, downtown, and City Park
- 5-person Marathon Relay – 5 legs, 5 distances – do it for one of our 200 charities
- Colfax 5K – kickoff the weekend on Saturday … and bring your dog!
After you hit the finish line and collect your medal, enjoy lunch, live music, fancy adult beverages, and 50,000 new friends!
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.