Oklahoma baseball was one inning from fading out of the NCAA regional. Instead, the Sooners buried Georgia Tech under eight runs in the fourth and turned a six-run hole into a 15-8 win Sunday, forcing a deciding game Monday afternoon.

That is the kind of swing that changes a regional in a hurry. Oklahoma trailed 8-2 before the fourth-inning burst, then watched Deiten Lachance clear the bases with a grand slam that put the Sooners ahead for good and sent the home dugout into a different game entirely.

The turnaround mattered because Georgia Tech had already won its first two regional games for the first time since 2010 and was trying to finish an unbeaten run through the bracket. Instead, the Yellow Jackets were sent into a rematch that carries the weight of a 20-year wait for a super regional berth, with only Monday afternoon left to settle it.

Oklahoma also had to fight through a rough break in the third inning. A controversial pitch clock violation on Jackson Blakely stopped a rally after Trey Gambill’s run-scoring single was wiped away, a call that could have rattled a team already working from behind. It did not. The Sooners came back in the fourth, with Carson Kerce reaching when Jaxon Willits made an error, scoring on a sacrifice fly, and then seeing Brendan Brock, Kyle Branch and Jason Walk keep the pressure on with a homer and back-to-back RBI singles.

From there, Georgia Tech never found a way back. The Yellow Jackets put six runners on base from the fifth through the eighth and did not score once, while Oklahoma added a run in the seventh and four more in the eighth to finish the rout. Relief pitching from Gavyn Jones and LJ Mercurius closed the door, and Mercurius did it after throwing three scoreless innings against The Citadel on Saturday and then four more on Sunday. Mercurius said he told coaches he was fine when he was not, adding that he felt good enough to compete, and he held Georgia Tech down long enough for the comeback to stand.

The compressed schedule matters too. Rain washed out part of Oklahoma’s Friday slate and forced the Sooners to play four games in 36 hours, which made the late-inning finish more than just a comeback story. It left both teams waiting to see which arms will still be available Monday, and that uncertainty may matter as much as anything that happened in Sunday’s 15-8 game.