WATKINS GLEN, N.Y. - Marcos Ambrose passed Brad Keselowski on the final lap, then held him off in a fender-banging duel to win the Sprint Cup race at Watkins Glen International for the second straight time.
Kyle Busch was in control but was leaking oil on the track and skidded sideways coming out of the first turn of the final lap.
Keselowski's No. 2 Dodge caromed off the side of the No. 18 Toyota and Ambrose followed Keselowski through.
Ambrose and Keselowski battled side by side the rest of the way around the 2.45-mile layout, with neither giving ground before Ambrose moved in front heading to the checkered flag.