Register Now to Beat the Price Increase for the Colfax Marathon Weekend!


Register by 11:59pm on January 29 to beat the price increase for the Colfax Marathon races. Get early bird pricing plus save 20% on merchandise when you register. You’ll save $30-$68 off of final prices! Run through the stadium, downtow, Sloan’s Lake, the Denver Zoo, and more! Learn more at:

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