Tom Watson birdied the first hole in a sudden death playoff to win the 72nd Senior PGA Championshipat Louisville's Valhalla Golf Club.The 61 year old American (pictured) was tied with Steve Eger at ten under par at the end of today's fourth round.Eger missed a long birdie putt on the first playoff hole, setting the stage for Watson to sink a shorter birdie putt for the title.Kiyoshi Murota finished third at nine under par. Hale Irwin was fourth at eight under par.(Photo courtesy of PGA)