Urban 10 Miler

Run the final 10 miles of the Colfax Marathon course! The Urban 10 Miler features an epic Mile High Stadium run-through. Downtown Denver. Confluence and Cherry Creek, 17th Avenue to City Park – and one big afterparty. Sleep in, because you get a later start time – and it’s a staggered start from Rocky Mountain College of Arts and Design (RMCAD), filtering runners one by one into the ongoing marathon. If you’re looking for a challenge at a shorter distance, this is the race for you.

Virtual Photo Tour

Cruise to the bottom of the page and take the virtual photo tour to view the fun sites along the course!

Runner Perks

Great tech shirts, car decals, and awesome finisher medals for each runner with detachable mini-medallions for your keychain or necklace. Free runner tracking and digital on-course photo! Virtual race bag with awesome offers. Don’t miss the awesome afterparty and Michelob Ultra Beer Garden lakeside in City Park.


Age group awards are great keepsakes! Overall and masters awards are based on chip time (1st, 2nd, 3rd) as this is a staggered start. Age group awards are also by chip time (1st, 2nd, 3rd) in categories: 19 & under, 20-29, 30-39, 40-49, 50-59, 60-69, 70+.  As this is a staggered start, age group awards will be  available at a later date.

Run for Charity

Run for one of the largest Charity Partner programs in the country! Over 210 charities are participating this year. Choose a charity to run for when you register and they will contact you.

Training & Runs

Announcing the Colfax Training Series! Our Colfax Marathon Ambassadors will join Featured Running Clubs and running stores with Colfax drawings for great schwag. Check the TRAINING section for the up-to-date calendar – and great training tips.

Packet Pick Up & Race Day Logistics

Pick up Race Packets Friday and Saturday, May 18-19, 2018 at the Health & Fitness Expo. No Race Day Packet Pick Up. Detailed race day logistics will be posted in April.

Photo Tour

Hover over each photo to learn fun facts!

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