Stewart Cink recorded the greatest final-round PGA Tour comeback on American soil when erasing a nine-stroke deficit before breaking Ted Purdy's heart in a five-hole play-off at the Heritage.
Playing an hour-and-threequarters ahead of the final pairing of Purdy and Heath Slocum, Cink carded a seven-under-par 64 to post a clubhouse total of 10 under par on 274 - two strokes behind Purdy at the time.
But Purdy, who entered the week 366th in the World Golf Rankings, bogeyed the 10th and 15th holes on a birdie-free back nine to fall back to the same score. He had a 10-foot birdie putt to win but pulled it and signed for a 73.
Both players had chances to end the play-off before the fifth hole of sudden death. Purdy missed a 15-foot birdie attempt on the first extra hole before Cink misfired on three birdie tries within 16 feet.
Cink appeared to be in trouble on the winning hole - the par-four 16th - when he pulled his drive into a waste area.
But Purdy put his approach over the green, taking away any chance at birdie. Unable to see the pin because of the sunset at Harbour Town Golf Links, Cink put his second shot within six feet of the cup.
Purdy made an eight-footer for par, but Cink answered with the title-winning birdie. It was the third career win and second at Harbour Town for Cink, who recorded the second-largest 54-hole comeback in PGA Tour history.
Jean Van de Velde's collapse at the 1999 Open allowed Paul Lawrie to rally from 10 shots down and win a three-way play-off.
Ernie Els, Carl Pettersson and Patrick Sheehan finished in joint third on 276. Fred Funk was another shot back, while Briton Justin Rose, Stephen Ames, Jay Haas and Scott Hoch all earned just over £80,000 for joint seventh place on 278.
Darren Clarke, who had been well-placed at the halfway stage, was another shot back in joint-11th.