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File:Roller derby track.svg - Wikimedia Commons
CircleCityRollerDerby on Twitter: "Flat track roller derby is a full contact sport played while skating counter-clockwise in roller skates. Both teams are on the track playing offense and defense. To learn more,
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File:Roller derby track.svg - Wikipedia
Roller Derby Rule of the Day - 1.2.1 For regulation inter-league games, the track will be based on the specifications in Appendix A. The method of marking dimensions (tape, rope, etc.), including
Women risk pain and injury to skate on St. Pete roller derby track
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