According to Wikipedia.com, Roller derby is a roller skating contact sport played by two teams of fifteen members. Roller derby is played by approximately 1,250 amateur leagues worldwide, mostly in the United States, but lucky for you, Niagara Roller Derby is located here in Canada!

 

Some of us here at Niagara Roller Derby liken it to playing speed-chess while bricks are being thrown at you, but our friends at the Women's Flat Track Derby Association explain it better in the video below.