ATLANTA (AP) -- A comeback not even Tiger Woods saw coming a year ago.A chaotic celebration that golf hasn't seen even in the best of times.Woods delivered the perfect ending to his amazing return from four back surgeries on Sunday with a performance that felt like old times. He left the competition feeling hopeless as he built a five-shot lead early and hung on to win the Tour Championship.Woods raised both arms over his head after he tapped in for par and a 1-over 71 for a two-shot victory over Billy Horschel, the 80th victory of his PGA Tour career and his first in more than five years."It was a grind out there," Woods said.