NORTON, Massachusetts - Webb Simpson finished off an amazing comeback with three birdies, the final one on the second extra playoff hole, to win the Deutsche Bank Championship on Monday for his second title in three weeks.

On a day filled with big crowds and big moments appropriate to the FedEx Cup playoffs, Simpson delivered a stunning conclusion at the TPC Boston.

He looked as if he would be the runner-up until knocking in a 30-foot birdie putt on the par-5 18th hole for a 6-under 65. That put him into a playoff with Chez Reavie, who had birdied the toughest holes on the back nine and then made bogey on the easiest hole on the course at No 18 for a 66. They finished regulation at 15-under 269.