Roller derby combines the breakneck pace of NASCAR, the technical virtuosity of figure skating, and the hard-hitting action of badminton into a supersport smoothie. Your tickets get you in to see the Banger Sisters, Delta Delta Di, Kilmore Girls, and the Violent Femmes compete for first place, bragging rights, and bruises that most resemble Abraham Lincoln. Established in 2006, the North Star Roller Girls have steadily grown in popularity, becoming part of the Women’s Flat Track Derby Association in 2008. Today, North Star’s travel team, the Supernovas, periodically compete for a coveted national rankings spot. Teams are propelled by traditional quad roller skates, mounds of spunk, and intimidating monikers such as “Ida Kildher” and “Maggie McFaceStomp” as they propel their point-scoring teammates past opponents.