Durant's 18 Fourth-Quarter Points Carry Thunder OKLAHOMA CITY - The stage was set for a grand finale, choreographed with a supporting cast of big men and bit players that allowed Kevin Durant to soak in the moment and ready himself for the spotlight. Durant, the unquestioned star of the Oklahoma City Thunder, delivered beyond the lofty expectations he has built. With the San Antonio Spurs focused and refusing to let go, Durant scored 18 points in the fourth quarter to carry the Thunder to a 109-103 victory in Game 4 of the Western Conference finals. Oklahoma City has now evened the series at two games a piece, with Game 5 Monday night in San Antonio. Durant hit shots from all angles in about a five-minute stretch, lifting Oklahoma City a 102-93 lead with less than two minutes to play. Durant finished with 36 points, hitting 13 of 20 shots. Serge Ibaka, a frontcourt role player, hit all 11 of his shots and contributed 26 points. Tim Duncan led the Spurs with 21 points. The Thunder again fed off the frenzied energy of the capacity crowd at Chesapeake Energy Arena, and in the two games here, the series has morphed back into a predicted battle of styles and wills. For the Spurs, it was a return to the veteran patience and precision they used to throttle the Thunder in San Antonio. For Oklahoma City, it was the raw athletic speed and power that blew out the Spurs in Game 3. Indeed, the Thunder appeared on the verge of another rout, taking a 15-point lead with about five minutes left in the third quarter. But Manu Ginobili, missing for most of the game, came alive, making two free throws and drilling a 3-pointer to pull the Spurs to within 73-71 with 1:15 to go. Durant's jumper on the next possession gave the Thunder a 75-71 lead to finish the third quarter. The Spurs already had enough to worry about with the explosiveness of Durant and Russell Westbrook. Suddenly, Ibaka and Kendrick Perkins, the Thunder's often-underappreciated big men, began dominating underneath as Oklahoma City pushed ahead 55-43 at halftime. Both were almost perfect. Ibaka led the Thunder with 14 points on 6-of-6 shooting and Perkins added 13 points on 6-of-8 shooting. Perkins also grabbed eight rebounds to lead the Thunder's 24-17 edge on the boards in the half. Badly outmuscled in their 20-point loss in Game 3, the Spurs tried to assert themselves close to the basket, but were thwarted again by Ibaka and Perkins. Oklahoma City quickly found an inside-outside groove and outscored the Spurs in points in the paint, 26-24. The Thunder punctured San Antonio's vaunted pick-and-roll sets, too, shouldering through Spurs screens and anticipating passes like they knew the plays being called. Exhibit A in the Thunder's newly honed balance and unselfishness: Durant and Westbrook did not reach double figures in the first half. Durant scored 8 points, Westbrook had 6, and the dynamic duo blended so seamlessly into the game's flow that they combined to take only 11 shots. Duncan led the Spurs with 12 points, but Parker was sealed off for the second consecutive game, scoring only 6 points in the first half on 3-of-9 shooting. Still, not much seems to rattle these Spurs. But their confidence has been suspect in trying to stem a rising tide of turnovers after committing 21 in Game 3. Before tipoff Saturday, San Antonio was averaging 17.3 turnovers for the series and looked helpless in stopping the thievery of the Thunder, who were averaging 11.6 steals a game. "That really fuels those guys," Spurs Coach Gregg Popovich said. As quick and fast and talented as they are, it's like a lay-up drill every time we turn it over. We're better off spending our time valuing the basketball more than trying to concoct some play on offense. The message must have sunk in as the Spurs had only five turnovers in the first half, three in the first quarter. They opened an 8-point lead early, playing more of a deliberate style, but the Thunder's speed clicked into gear and the period ended tied 26-26.