Roller Derby is unique and growing sport played on roller skates. Each team has 5 players on the track to compete in the jam. A bout (game) consists of Jams which are no longer than 2 minutes long. The player positions are 1 pivot, 3 blockers and 1 jammer. The jammer is the only player who can score a point. The jammer must lap the pack of players once and on the second lap will score a point for each player of the opposite team passed. The opposing team will attempt to block the jammer from passing them. It is a fast paced and fun sport to play and to watch.
This sport has a colorful history. It has been played on a banked track or a flat track. There are 2 main organizations for the sport of roller derby; WFTDA, Women's Flat Track Derby Association and USARS, USA Roller Sports. There is also a popular conference called Rollercon held each year in Las Vegas.
Players are often dressed in entertaining outfits and sport witty and interesting derby names. Although this sport has a colorful history akin to televised wrestling, it has grown in recent years as a legitimate competitive sport with aspirations of being in the Olympics one day. One World Roller Derby is one organization working towards mainstreaming roller derby for the benefit of all.