Get ready for a truly mud-covered competition at the annual Hard as Nails Obstacle Mud Race in scenic Denver. Grubby fun is the order of the day at this popular event that features challenging kid- and adult-friendly courses
Runners and running enthusiasts of all ages rejoice! The Colfax Marathon hits the streets of scenic Denver with fun racing events May 17th and 18th. Run your best time, then relax and enjoy fun, family entertainment and great food at the after party.