It was all SGA for OKC down the stretch. The Thunder closed the game on a 16-7 run; he had all but one of those points.

“We played with desperation to end the game,” Gilgeous-Alexander said, “and that’s why we won.”

Jalen Williams added 27, Alex Caruso had 20 and Chet Holmgren finished with 14 points and 15 rebounds for the Thunder. They did it the hard way — with a season-low three 3-pointers, and no assists from Gilgeous-Alexander for the first time all season.

Pascal Siakam scored 20 for Indiana, which got 18 from Tyrese Haliburton and 17 from Obi Toppin.

Game 5 of the series — now essentially a best-of-three — is at Oklahoma City on Monday night, with the Thunder now having reclaimed home-court advantage.

“This kind of a challenge is going to have extreme highs and extreme lows,” Pacers coach Rick Carlisle said. “This is a low right now and we’re going to have to bounce back from it.”

The Thunder basically saved their realistic chance at winning the title. Teams with a 3-1 series lead in the NBA Finals have gone on to win the championship 37 times in 38 past chances. The Pacers looked well on their way to being the 39th team with such an edge, before Gilgeous-Alexander saved the day.

“We knew it when we woke up this morning; 3-1 is a lot different than 2-2 going back home,” Gilgeous-Alexander said.

The Pacers came out flying, scoring 20 points in the first 4:59 — only the second time all season the Thunder gave up so many so quickly. They led by as many as nine early, but were unable to pull away.

And things got chippy for the first time in the series: Toppin was called for a Flagrant 1 on Caruso midway through the second quarter, then Toppin was the recipient of a Flagrant 1 from Lu Dort just before the half. The Pacers closed on a 15-6 run, taking a 60-57 lead into the break.