Auburn's Chris Dennis (4-0) entered in the seventh inning and earned the win in relief, striking out Georgia's last six batters of the game.
For the third time in the series Georgia jumped on the board first as Josh Smith led off the game with a triple to right field and scored on Justin Holmes' double to left.
The Tigers (31-21, 10-17) took their first lead of the weekend when Clete Thomas wrapped a two-run homer around the right field foul pole in the bottom half of the third for a 2-1 lead.
Bulldog second baseman Marshall Szabo answered Auburn's run with a homer of his own to right field on the first pitch of the fourth inning that tied the game at 2-2. It was Szabo's fourth home run of the year and fourth solo shot.
Szabo scored again in the sixth on a Clint Sammons single and Georgia took back the lead at 3-2.
In the eighth Auburn pieced together two runs on two hits including an RBI double by Thomas and led 4-3 entering the final frame.
Bulldog starter Paul Lubrano took a no-decision on 6.2 innings with five hits, two runs, one walk and four strikeouts. Mitchell Boggs (2-2) took the loss for Georgia.
Register also earned a no-decision for Auburn, allowing three runs and just six hits in six innings of work.
Each of Auburn's last four wins over Georgia at Plainsman Park have come by one run...The Bulldogs fall to 6-3 in game three of an SEC series and 4-1 when going for a sweep...Georgia scored first in each game of the series at Auburn but falls to 20-5 this season when doing so...Szabo continues to lead the Bulldogs with 22 multi-hit games in 2004.