Shortstop Dan Glevenyak's one-out sacrifice fly in the bottom of the 10th inning Saturday lifted Auburn to a 3-2 win over No. 8 LSU at Plainsman Park.
Auburn, which has won the first two games of the weekend series, improved to 15-8 overall and 4-1 in SEC play. LSU is 17-6 overall and 2-3 in conference games.
The teams conclude the series at 1 p.m. Sunday. Freshman right-hander Aaron Nola will start on the mound for LSU, while Auburn will counter with freshman left-hander Daniel Koger.
"Another very hard-fought, extremely competitive ball game that was decided on the final pitch," said LSU coach Paul Mainieri. "Our players gave a tremendous effort but we have to find a way to win these games. It's disappointing, but I know we'll come back ready to play another very important game tomorrow."
LSU reliever Joey Bourgeois walked leftfielder Cullen Wacker to open the bottom of the 10th, and Wacker was sacrificed to second base on a bunt by first baseman Garrett Cooper. Nick Goody replaced Bourgeois on the mound and issued a walk to DH Justin Bryant before a Goody wild pitch advanced the runners to second and third.
Glevenyak lifted a fly ball to right field that was caught by Alex Edward, but Edward's throw to the plate was not in time to get Wacker, who scored the winning run.
LSU had the go-ahead run on at third base with one out in both the 9th and 10th innings, but the Tigers grounded into a double play on each occasion.
Bourgeois (0-1), the third of four LSU pitchers, was charged with the loss as he allowed one run on one hit in 1.1 innings with two walks and one strikeout. Auburn reliever Slade Smith (2-3) was credited with the victory, as he allowed two hits in the 10th inning but got the final two outs on a double play.
LSU received a strong outing from starter Ryan Eades, who worked 7.1 innings and limited Auburn to two runs on seven hits with four walks and four strikeouts.
Auburn starter Will Kendall pitched six innings and was charged with two runs on six hits with no walks and one strikeout.
Auburn grabbed a 1-0 lead in the bottom of the first inning as Wacker's sacrifice fly scored rightfielder Jay Gonzalez from third base.
LSU scored two runs in the third to take a 2-1 lead as centerfielder Chris Sciambra delivered an RBI sacrifice bunt and first baseman Mason Katz produced a sacrifice fly.
The score remained 2-1 until the bottom of the eighth, when Cooper lined an RBI single against Eades to tie the game at 2-2.