Colfax Marathon

The Colfax Marathon is an annual marathon foot-race held in Colorado, United States, since 2006. Significant portions of the course follow Colfax Avenue. Wikipedia

• Date:  May
• Location:  Denver, Colorado, U.S.
• Event type:  Road
• Distance:  Marathon
• Established:  2006
• Participants:  1502 finishers (2019)
• Data source:  DuckDuckGo