The final game of the series is set for Sunday at 4 p.m. Eastern with ESPN also having the broadcast.
Prior to the contest the Lady Vol senior class, consisting of Ashley Andrews, Holly Baker, Shelby Burchell and Cat Hosfield, was honored in a ceremony for their contributions to the Tennessee program.
Ivy Renfroe improved to 12-6 overall on the year, allowing two runs on just one hit with four walks and three strikeouts over 6.1 innings of work.
The Jackson, Tenn., native took a no-hitter into the seventh inning before giving up a one-out single to pinch hitter Kailey McCasland. Sophomore Ellen Renfroe registered her third save of the season in relief, permitting just one hit with two Ks in two-thirds of a frame.
Junior second baseman Lauren Gibson led the Big Orange offense by going a perfect 3-for-3 at the plate with a run scored and her 34th RBI of the season while reaching base successfully for the 15th consecutive game.
Sophomore shortstop Madison Shipman knocked in her team-leading 50th run of 2012 as part of a 1-for-3, run scored effort, while junior first baseman Melissa Brown (0-for-3) was credited with a RBI via a groundout during UT's four-run first inning.
By drawing a walk in the opening frame, junior third baseman Raven Chavanne managed to reach successfully for the 23rd straight contest dating back to March 11.
"Well today was a great day for our team," Co-Head Coach Karen Weekly said. "I'm especially happy since it was our Senior Day, where we honored four seniors who have meant so much to our program and put so much blood, sweat and tears into it. We're really happy to come out of here with a win.
"LSU's a great team with very tough pitching. Ivy was strong today. She didn't have her best stuff, it wasn't as sharp as it sometimes is, but she did a great job of giving us 100 percent of what she had. To take a no-hitter into the seventh inning was just fantastic, and we played great defense behind her, which was a huge part of it.
"Lauren had a great day at the plate because she had really smart at-bats and did a great job of adjusting from at-bat to at-bat."
The Big Orange speed game got the Tennessee offense started immediately in the bottom half of the first as Chavanne drew a lead-off walk and junior right fielder Kat Dotson singled on a bunt.
With two on base Shipman and Gibson followed with back-to-back RBI singles through the infield as the Lady Vols raced out to a quick 2-0 lead.
UT plated another tally with Brown standing at the dish as LSU starter Brittany Mack uncorked a wild pitch allowing the advantage to grow to three runs. Brown hit a shot off the pitcher that was fielded off the ricochet by shortstop Santos and tossed on to first, but it granted Gibson the opportunity to score and make it 4-0.
Getting the start at designated player on her Senior Day, Hosfield registered a single to begin Tennessee's half of the fourth. The Murfreesboro, Tenn., native would eventually end up stranded on third, however, as a sacrifice bunt, a fly out to center and a routine grounder to first ended the inning.
Gibson made it a perfect 3-for-3 in the bottom of the fifth with a two-out single, but remained at first as Senior Day honoree Holly Baker flew out to center.
With the Tigers down to one final chance to break up the no-hitter in the top of the seventh, Ivy Renfroe started off the frame with a strikeout of Cassie Trosclair.
A one-out walk to designated player Ashley Applegate gave the Tiger offense some life. That was all LSU needed as pinch hitter Kailey McCasland broke up the no-no with a clean base hit into shallow left field.
That concluded Ivy Renfroe's stint in the circle as sister Ellen came in facing a save situation. The new pitcher's initial offering was ripped to center by Wray as the Tigers got on the board, cutting their deficit to 4-1. The Bayou Bengals pulled off a double steal as pinch runner Simone Heyward swiped second with McCasland racing home as the ball escaped Shipman's glove on a tag attempt to make it 4-2.
Ellen Renfroe calmed things down after that, though, posting consecutive strikeouts of Pizer and Andrews to end the game.