With the win, LSU improves to 51-9 on the season, while Georgia falls to 54-14. Needing one win to advance to the SEC Tournament championship game for the fourth straight year, the Tigers will face the winner of the Auburn-Alabama game on Saturday at 7 p.m. CT.
With the scored tied at one in the bottom of the seventh, Christy Connor led off with a single up the middle. With one out, Lynam nailed a shot to right centerfield that scored Connor from first for the game-winning run.
All-American Britni Sneed earned the victory in record-setting fashion, improving to 30-6 on the year. She allowed one run on three hits while walking one.
The senior from Houston struck out 12 batters to break the SEC Tournament single-game strikeout record. For the season, she now has 418 strikeouts, breaking the LSU and SEC single-season strikeout mark and moved past 1,300 career strikeouts.
The Bulldogs jumped on the board with a run in the top of the first inning.
Nicole Barber led off with a single and then the NCAA leader in stolen bases, stole second. With one out, Kristen Bell doubled to left centerfield to score Barber.
LSU threatened in the bottom of the first as Trena Peel led off with a single. After she stole second, Christy Connor walked to put runners on first and second. With two outs, Tessa Lynam drew another walk to load the bases.
With Julie Wiese at the plate, she nailed a deep fly ball to left field that came about two feet from being a grand slam, but was caught by the Bulldog leftfielder on the warning track for the third out.
The Tigers loaded the bases again in the third inning, but could not push a run across as Georgia came up with two big defensive plays. With runners on first and second, Tessa Lynam hit a hard ground ball that loaded the bases, but Bulldog second baseman Katie Lewis made a diving stop on the play to keep the runner from second from scoring.
With two outs, Megann Steege hit the ball on a rope to the left side, but Georgia third baseman Kristin Bell caught the line drive for the third out to end the LSU threat.
The Tigers finally broke through in the fourth inning. With one out and Jennie Reeves on first, Trena Peel nailed her NCAA-leading 14th triple to right centerfield to score Reeves from first and tie the game at one apiece.
LSU stranded a runner on third again in the fifth inning, before getting the game winner in the seventh.
Over the final three innings, Sneed settled into a grove. She faced only one over the minimum, striking out four while walking one.