Run the final 10 miles of the Colfax Marathon course! The Urban 10 Miler features an epic stadium run through – Broncos Stadium at Mile High. 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 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.   Your bib has an RTD ticket so you can get back to your car.