Running Race
Denver Colfax Marathon Weekend
Denver, Colorado's only marathon plus a half marathon, and urban 10 miler through Denver's most iconic landmarks. Create a Marathon Relay Team for more fun!
- When
- May 17 – May 18, 2026
- Where
- Denver, CO
- Est. attendance
- 25000
- Organizer
- Denver Colfax Marathon
About this event
Denver, Colorado's only marathon plus a half marathon, and urban 10 miler through Denver's most iconic landmarks. Create a Marathon Relay Team for more fun!
View original listing on runcolfax.org →Track record & vendor details
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