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Colfax Marathon

Run for No Kill Colorado through Denver’s best landmarks in the 12th Anniversary Colfax Marathon with 7 different races to choose from!! Join Colorado's big running community reunion and achieve your goals on these flat courses!

7 races from the 5k to the full marathon.

Don't want to run?   Its easy to get your fundraiser going.  You can simply send friends to to donate to the group and support runners running for the lives of Colorado Pets.

Let's make Colorado the Safest State for Homeless Pets!