+**Roller Derby** is a full-contact [skating](/wiki/skating) sport played by two teams on an oval track. Players score points by one team member, the "jammer," lapping opponents, demanding strategy and speed in this dynamic [team sport](/wiki/team_sport).
+## See also
+- [Sports](/wiki/sports)
+- [Skates](/wiki/skates)
+- [Competition](/wiki/competition)
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