Russell Westbrook scored 40 points and Kevin Durant scored 35, including a pair of huge baskets late in triple overtime as Oklahoma City stole back home court advantage with a 133-123 win early Tuesday morning in Memphis.The Thunder allowed a 10-point lead with five minutes remaining to evaporate and also held an eight-point advantage in overtime only to have the Grizzlies rally to force another.In the third overtime, Westbrook scored on a lay-up with 3:37 remaining to give the Thunder the lead for good. With OKC up by four, Durant put the finishing touches on the win with a pair of baskets -- the last coming with 29 seconds left to give the Thunder a 131-123 lead."This is probably the biggest game of my life," Durant said after the game. "And I wanted to try to take advantage of it. I wanted to leave everything on the floor and be satisfied with the results. I'm happy that it went our way tonight.""Words can't describe the emotions that went through our team throughout the game," Thunder head coach Scott Brooks said. "It was a heck of a game. Those are the games that it's unfortunate someone has to lose."James Harden added 19 points and Daequan Cook ten for the Thunder, who will look to take the lead in the series when Game 5 is played back in Oklahoma City Wednesday night.