... most may know the sport from when it was centre rink in Drew Barrymore film Whip It...
The rules are pretty simple two teams compete on a oval track. Each team has a Jammer (the one with a star on helmet). The Jammers goal is to pass the other team. Once they have done a full lap, each opposing player passed equals a point. Thus the role of the rest of each team (the blockers) is to stop the competing Jammer...with brute force...on roller skates.
it's not just the action on the track that's cool. Ring side is a creative, punk rock sub-culture made up of teens, Mums, young and old - all a bit rock n roll really
Oh and the other cool thing, player names. Kiki Chaos, Skate Bush and Psyclone Tracey to name a few.