These women are officially the most badass skaters in the land. In November, the Rocky Mountain Rollergirls beat reigning champs the Oly Rollers of Washington to win the roller-derby world championship and bring the trophy — a silver skate mounted on an artful piece of twisted metal — to the Mile High City. This year, they'll fight to keep it here when the 2011 world championship is hosted in Colorado. But winning isn't all they do; the Rollergirls also give back. In the past year, they helped start a junior derby league, the Rocky Mountain Rollerpunks, and shepherded a resolution through the state legislature, recognizing how the sport of roller derby empowers women.