But they did it a different way this time around.
They used an offensive flurry that has been long dormant in recent days, banging out 15 hits to score 12 runs against one of the nation's best pitching staffs.
"I mean, it's been so tense all season because it's been so hard for us to score runs," said right fielder Cody Reine. "And us being able to put up a 12-spot today felt really good."
OU leapt out to an early 1-0 lead on second baseman Jack Mayfield's RBI single into right center in the bottom of the first.
However, it trailed for the first time in the series when Baylor catcher Josh Ludy smashed a homer over the left field fence, center fielder Logan Vick legged out an RBI triple and shortstop Jake Miller followed up with an RBI double to make it 3-1.
The Sooners, however, stormed back to tie it with a pair of their own in the bottom half of the second.
Then, what seemed to be a routine pop up fell for an infield RBI double by Reine.
Baylor got the lead back, though, on a similar play where Sooner shortstop Caleb Bushyhead head lost the ball in the sky.
Vick recorded his second RBI, scoring Muncy, who reached on the bizarre play.
"I asked our guys at that moment, I said, 'Hey if I told you on Tuesday or Wednesday you'd already have two games in the bag and be down by one run with most of the game left to play, would you take it?' And the answer's yes," said OU head coach Sunny Golloway. "And I said, ' So let's not, no one be negative. Everyone be positive and let's just go from here. Let's just take the game from here.
"Let's just have amnesia on what's happened so far and just play the rest of the way out. We played terrific the rest of the way out."
It started in the fifth when OU took the lead back for good.
Reine led off with a game-tying solo shot to right, and Mayfield and Carey managed RBI singles to give OU a 6-4 advantage.
"It was just, I've been missing--felt like I was just missing pitches all day," Reine said. "I was seeing the ball really well and knew once he got ahead he wasn't going to throw a fastball. I'd just been swinging through them, fouling them off. So, I was sitting on off speed and he threw it there where I wanted it."
It became 8-4 on designated hitter Evan Mistich's RBI single and Carey's run-scoring double down the left field line.
Baylor made it interesting in the eighth, loading up the bases with one out, but reliever Jake Fisher came in and slammed the door, allowing just a sacrifice fly after the Bears chased Magnifico on four hits, including an RBI single in the inning.
So, it was 8-6 heading into the bottom when OU really opened up the floodgates.
The Sooners scored four more runs on two hits, including a two-run double by Mayfield, who recorded a team-high four RBI on the day, and a two-run single by Mistich, who picked up his second and third RBI of the afternoon.
"That was real impressive, 12 runs on the No. 2 team," Mayfield said. "So, everyone's just squaring the ball up and doing what they needed to do."
Fisher locked Baylor down in the ninth to throw 1 1/2 scoreless innings in relief of the winner, Magnifico.
Magnifico finished with three earned runs on 10 hits, striking out three in 5 1/3.
"It was just good to get on that mound again," said Magnifico, who came in for starter Dillon Overton after he lasted just two innings and surrendered three runs, two earned in a no decision. "When Coach called my name, I was ready."
Bears starting pitcher Tyler Bremer suffered his first loss of the season after giving up five earned runs in four-plus innings.
The Sooners (33-19), who finish 13-10 in Big 12 play, now get back to action with a pivotal home non-conference contest against TCU set for 6:30 p.m. first pitch Tuesday.