 Kyle Busch maintained a 1.4 second lead over Kurt Busch by the 249th lap. Three laps later, Keselowski drove out of his garage to rejoin the race. By lap 262, drivers reported their cars were sliding in the corners as their tires became worn. Green flag pit stops began on lap 265; Kyle Busch maintained the lead at the end of the cycle, ahead of Reutimann and Kenseth. On the 290th lap, Kurt Busch's crew reported to him that he was running two laps short of fuel. Six laps later, Kyle Busch started to slow in the corners to conserve fuel. On the 298th lap, Martin dropped one position to run fifth. By the 302nd lap, overall speeds had dropped due to drivers starting to conserve fuel. Green flag pit stops began on lap 311, as Truex made a stop for fuel. Kyle Busch elected not to make a pit stop and increased his lead to four seconds by lap 314. Eight laps later, Kyle Busch was told by his team to reduce his speed. On lap 330, Kyle Busch drove to pit road, having run out of fuel, handing the lead to Kurt Busch. One lap later, Ambrose ran out of fuel, as Kurt Busch held the lead to win his second race of the 2009 season. Hamlin finished second, ahead of Kenseth in third, Martin in fourth, and Harvick in fifth. Stewart, Bowyer, Biffle, Burton and A.J. Allmendinger rounded out the top ten finishers.
