Why bother choosing local league loyalties when the best roller derby team in the world this year featured skaters from both the Rocky Mountain Rollergirls and the Denver Roller Dolls? Portia "Frida Beater" Hensley, a star of the RMRG 5280 Fight Club traveling team, led Team USA into battle as a co-captain when the squad rolled into Toronto in December for the inaugural Blood & Thunder Roller Derby World Cup. She was joined by her pseudonymous 5280 Fight Club teammates Amanda Jamitinya, DeRanged, Psycho Babble and Urrk'n Jerk'n, plus two of her crosstown rivals — Tracy "Disco" Akers and Heather Juska, of the DRD Mile High Club — as well as top skaters from leagues across the country. The rest of the world wasn't quite ready for all that: Team USA decimated squads from New Zealand, Scotland, Australia and Canada in a series of show-no-mercy victories on the way to winning the World Cup. The next World Cup is in 2014, which should give the other teams plenty of time to let their bruises heal.