The Pacers were the league's best rebounding team and best perimeter-defense team.
As a result, New York was out-rebounded, 54-36, and held to 8-of-28 from beyond the arc. The Pacers grabbed 16 offensive boards.
Paul George and Roy Hibbert combined for 25 rebounds, while George added 18 points, seven assists and tireless defense on Carmelo Anthony.
George Hill was unbelievable, with 14 of his game-high 26 points in the third quarter.
Anthony was efficient early on, but eventually the defense got to him. He fouled out late, exiting with 24 points on 9-of-23 shooting. Raymond Felton (7-of-16) and J.R. Smith (7-of-22) weren't any better, as the Knicks shot just 35.6 percent as a team. This was their second straight game shooting less than 36 percent from the field.
The Knicks didn't lead at all during the first half. Meanwhile, the Pacers finished off each of the first two quarters with runs to build separation. A 13-4 swing to close the half put them up, 48-34. Paul George had two of those points, giving him 12 in the half.
Hibbert picked up his fourth foul with 7:16 to go in the third quarter, after the Knicks had cut the deficit to 11. That put him and his rebounding dominance on the bench for the remainder of the frame, in favor of Ian Mahinmi.
A Hill jumper quickly extended the lead back out to 16 for Indiana, 59-43. Hill was punishing Felton at the outset of the third quarter, scoring 10 of the Pacers' first 12 points.
Mike Woodson made some adjustments to his lineup through three quarters—none of which were helping the Knicks. He started Kenyon Martin, who didn't score a point, and played Pablo Prigioni, whom he's had recent success with, just three minutes
A 6-1 close-out to the third quarter by New York left the Pacers up just 11 entering the final period. J.R. Smith, who had struggled all night, put in four of those points.
As the final 12-minute countdown commenced, Hill's scoring abilities were magically transferred to Lance Stephenson. The other Pacers backcourt starter went for five straight at the start of the fourth quarter, pushing the lead back to 74-61.
With 6:45 remaining, Anthony picked up his fifth foul with a frustrated whack of George on a drive. But Anthony remained in the game, as Woodson had few other offensive options. George was a growing pain needling the Knicks, all over the court with relentless energy.
The Knicks got six straight around the three-minute mark, which resulted in Hibbert's fifth foul on a Tyson Chandler and-one. That got them back to an 11-point deficit with 2:47 to go.
The game was all but over with 2:00 left. Shortly after, Anthony shoved Hill on a Smith missed three. That was his sixth foul, sending him to the bench for Shumpert, who promptly missed a three.
The Pacers hit 9-of-10 from the free-throw line inside the final two minutes, closing the game out.
Indiana now holds a commanding 3-1 lead in the series and will look to advance to the Eastern Conference Finals on Thursday at Madison Square Garden.