"All season long we did a great job of closing out big games and trying to prepare ourselves for moments like these," Westbrook said. "I thought tonight we all stuck together. "They made a run but everybody had a big role towards the end of the game and we came away with the win." Serge Ibaka had 12 points, 11 rebounds and six blocks while Swiss-native Thabo Sefolosha scored 11 for the top-seeded Thunder, who rallied after squandering a 15-point fourth-quarter cushion. The Thunder led 89-74 early in the final frame but the Rockets went on a 21-2 tear to take a 95-91 advantage on Argentine Carlos Delfino's three-pointer with three minutes 27 seconds left to play. The Thunder kept their poise, though. Durant stroked the go-ahead three-pointer, and assisted on Sefolosha's wide-open triple on the next play for a 101-97 advantage with 61 ticks to go. After James Harden made one of two free throws to pull the Rockets within three, Ibaka buried a huge jumper with 31 seconds remaining, opening up a five-point advantage and the Thunder closed on a 14-7 run for the victory. "We just stayed composed," Thunder coach Scott Brooks. "We've been on both sides of those runs and the only way you can through them is sticking together. That's what our guys did." Harden had 36 points with 11 rebounds for the eighth-seeded Rockets, who played without point guard Jeremy Lin in the second half because of a chest contusion. Chandler Parsons scored 17 and Patrick Beverley finished with 16 and 12 boards. "We most definitely had it slip away," Harden said. In San Antonio, the Spurs had a 102-91 win over the Los Angeles Lakers.