The Wildcats (1-3) were off to their longest losing streak to start a season in four years and made sure to put away the Bulldogs (1-2) with a 13-4 run at the end of the opening period to take a 46-36 lead into the half. Georgia never got closer than 8 points the rest of the way as it dropped a second straight game after losing to rival Georgia Tech last Friday night.
Davidson has advanced to the past two NCAA tournaments as Southern Conference champion. Yet, it hadn't broken through for a win before now in a difficult early schedule.
The Wildcats will play either Clemson or Temple in Friday's semifinals.
Nemanja Djurisic had 19 points lead Georgia.
Brooks was 13 of 16 from the foul line and added a team-high eight rebounds. Sullivan had three of Davidson's eight 3-pointers.
Djurisic had four of Georgia's five 3-pointers and tied with Juwan Parker for the team lead with six rebounds. Charles Mann, the Bulldogs top scorer this year, had 18 points, Kenny Gaines had 13 and Cameron Forte 10.
Davidson has plenty of good tournament memories in Charleston, winning four Southern Conference titles at the nearby North Charleston Coliseum in 2002 and three straight from 2007-09. Its time at the Charleston Classic at TD Arena is another matter. When the Wildcats played in this eight-team event in 2009, they lost all three games as part of the only 0-4 start in coach Bob McKillop's 25 years.
And even with Davidson ending its long association with the SoCon -- it's off to the Atlantic 10 Conference next season -- McKillop and the Wildcats put on stellar show against the Bulldogs of the Southeastern Conference.
Davidson went on a 13-4 run the final five minutes of the opening half to move in front 46-36. Sullivan, who had 18 points in the first half, got the run started with a 3-pointer before Barham had a layup and a foul shot. Sullivan had two foul shots and Barham a 3-pointer. Sullivan wrapped it up with two more from the foul line and the Wildcats were comfortably ahead.
Georgia shot 50 percent (14 of 28) in first half and out-rebounded Davidson 17 to 14. But they had nine turnovers that led to seven points by the Wildcats.