Winthrop's basketball program began in 1978 as a member of the National Association of Intercollegiate Athletics (NAIA). In 1985, the team made an immediate jump to the Big South Conference where they currently compete. In thirty years, Winthrop has won ten conference tournament championships as well as seven regular season championships, the most recent of which came in 2008. Most notably, the Eagles won the Big South Conference tournament in 2007 and subsequently upset the sixth-seeded Notre Dame Fighting Irish, 74–64, as the 11-seed in the first round of the 2007 NCAA Tournament. It was the Eagles' first and currently only NCAA tournament victory in program history.