May 18, 2013 to May 19, 2013 – Colfax Ave. One of Colorado's biggest and best marathons. Spanning over 2 days, the weekend will feature a 5k, marathon team relay, 10 miler, half marathon, and full. Organized by | Type: marathon, half-marathon, relay, 10, mile, 5k
June 1, 2013 all day – Roxborough State Park A race for the Ultra junkies out there. 50 Mile and 50k in beautiful Roxborough State Park. For online registration, follow link: http://www.active.com/ultra-marathon/roxborough-co/run-for-aurora-50-… Organized by Claire Dorotik | Type: ultra, marathon
July 4, 2013 from 7am to 1pm – Monument Valley Park Registration for our first annual Half on the 4th Half Marathon has just opened and it’s only $35 until May 1st! This fast and well shaded 13.1 mile course will begin and end in Monument Valley Park… Organized by Spree Racing LLC | Type: half, marathon
June 18, 2012 at 6pm to June 17, 2013 at 7pm – Security Public Library
May 18, 2013 from 7am to 10am – Cheyenne Mountain Zoo
May 18, 2013 from 10am to 12pm – North Monument Valley Park
© 2013 Created by Tim Bergsten.

