Come out to Colorado’s most popular duathlon, during which you'll run, bike, and run again all the way to the finish line. Friends and family can watch your progress on a live online feed and you can gloat about your accomplishment with printable finisher certificates and personal finish line photos (with free downloads!). Stick around for a post-race picnic lunch and raffle featuring racing gear from some of the sponsors, including Excel Sports and Runners Roost. Sat 7 a.m.
Visit racingunderground.com .