 This yielded a 12.5 differential to lead the nation, ahead of Brigham Young and Memphis who both had 11.5 differentials.South Alabama followed that with three more 20-win seasons in a row, and in 2008 received an at-large bid to the NCAA tournament, but lost to Butler University in the first round.Since the Sun Belt expansion to 13 members in the 2006-2007 season, South Alabama is second only to Western Kentucky in conference winning percentage (65.3% to WKU's 76.4%).