Mark Jackson reminds all listeners once a night that Andre Iguodala's importance to the Warriors can't be measured by his statistics.

The head coach didn't have to issue his usual reminder Thursday.

On a night during which he spent most of his energy making life tough defending Kevin Durant, the best scorer in the world, Iguodala had enough left in reserve to hit a fading, twisting 16-foot buzzer beater that made the Warriors a 116-115 winner over Oklahoma City.

"The guy has a big-time basketball IQ. He read it, reacted ... got the catch and made an incredible shot," Jackson said. "It was a big win for my guys."

It was a win that looked out of reach just moments before Iguodala's heroics. Though they had a 14-point lead over one of the league's elite teams with 6:59 remaining, the Warriors found themselves in a 115-114 hole after Russell Westbrook confidently pulled up from 29 feet and drained a three-pointer with 2.3 seconds left.

As Westbrook was celebrating near midcourt, the Warriors looked broken on their way to the timeout huddle.

"They were down. They were upset," he said. "You look and you say, 'How did they climb all the way back and now we find ourselves with two seconds go and down by one? How?' You start beating yourself up."

But the Warriors stopped pummeling themselves long enough to perfectly execute the final inbounds play from Klay Thompson to Iguodala and claim their most meaningful victory of the season.

Until Thursday, the Warriors (6-3) had pretty much won the games they were supposed to win and lost the games were supposed to lose. But the Thunder (5-3) offered a litmus test on the Warriors' home court, and the Warriors were up to the challenge in front of the 42nd consecutive sellout at Oracle Arena and a national TV audience.

In a game played with great pace and skill, the score was tied nine times and the lead swapped hands 16 times. Neither team led by more than seven until the Warriors appeared to get some breathing room by closing the third quarter on an 11-4 run that gave them a 95-86 advantage.