After the Knicks’ devastating loss to the Pacers in the first game of the Eastern Conference finals, professional golfer John Pak found motivation in the defeat.

Playing in the Charles Schwab Challenge in Fort Worth, Pak attributed his strong performance on Thursday to the Knicks’ collapse. The Knicks lost in overtime after a disastrous fourth-quarter meltdown against Indiana.

As a dedicated Knicks fan from Scotch Plains, N.J., Pak expressed his disappointment, saying, “I’m a die-hard Knicks fan, and that historically was one of the worst losses I’ve ever seen in my life, and there was a fire lit under me this morning. I was a little pissed off about that.”

Pak shot a career-low round of 7-under 63 to put him atop the leader board Thursday despite a lackluster slumber.

“I didn’t sleep well after that loss last night. I’m going to recover, do a little stretching, and then maybe watch the Thunder game later (Thursday),” he said, as covered by CBS Sports.

If Pak tuned in, he saw Oklahoma City take a 2-0 series lead in the Western Conference finals against the Minnesota Timberwolves with their 118-103 triumph.

Pak will tee off Friday at 2:40 p.m. — roughly five-plus hours before Game 2 between the Knicks and Pacers tips off at Madison Square Garden.

The Knicks, playing in their first Eastern Conference finals since 2000, failed to hold on to a 14-point lead with less than three minutes to go, giving the Pacers all the momentum they needed to steal Game 1 on the road.

“We didn’t run through that finish line,” Josh Hart said postgame. “I feel like defensively we let off the gas, intensity and physically weren’t there, offensively we were playing slower, a little stagnant, and it looked like we were playing not to lose.”

The Knicks can even the series with a Garden victory Friday before Games 3 and 4 shift to Indiana on Sunday and Tuesday, respectively.