Denver Colfax Marathon

About This Event

Denver’s signature road race invites runners of all distances to tackle the Colfax course through iconic Denver neighborhoods. The listing highlights the full marathon and a Half Marathon option with a noted “personal safari” mile on the half course, suggesting varied scenery and spectator energy. Held at historic City Park, expect a large-scale race atmosphere with course support, volunteers, and strong community turnout. This event is ideal for goal-oriented runners and spectators who enjoy big race-day festivals.

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