LONG POND, Pa. -- Kurt Busch dominated at the beginning, surged back to the lead late and raced to his second win of the season Sunday in the Pennsylvania 500 at Pocono Raceway.

The defending NASCAR Nextel Cup champion led 110 of the first 150 laps on the 2.5-mile triangle and kept his fifth-place spot in the points standings with six races left to decide the 10 drivers who will race for the title.

The "Chase for the Cup'' begins at New Hampshire International Speedway on Sept. 18.

Busch passed second-place finisher Rusty Wallace coming out of Turn 3 with 17 laps left and held on to the lead even as four cautions came out before the end, which forced three extra laps and the green-white checkered flag.  More