Colfax Marathon

The Colfax Marathon is an annual long-distance running event held in the Denver metropolitan area. The Colfax Marathon weekend is the largest marathon weekend in the Rocky Mountain region,... Wikipedia

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