NORTON, Mass. — Webb Simpson couldn’t believe how quickly his fortunes changed at the Deutsche Bank Championship.

He was standing in the scoring area off from the 18th green after making a 30-foot birdie putt that gave him a 6-under 65, which looked to be worth only second place until Chez Reavie hit a wedge over the green and made bogey. Two playoff holes later, Simpson had his second PGA Tour win in the last three weeks.

He went to No. 1 in the FedEx Cup standings. He was assured a spot on the Presidents Cup team.

“I couldn’t expect anything more,” Simpson said.

Then again, Simpson should be used to big turnarounds.

A year ago, he missed the cut at the Deutsche Bank and headed home to an uncertain future. He still didn’t have enough money to secure his card for the following season. Simpson played the next four weeks in the Fall Series, and only a tie for fourth in Las Vegas gave him enough money to make him feel safe.

He was No. 213 in the world. There was a changing of generations in golf, and no one had reason to believe Simpson would be part of it.

It was a different story when he drove off Monday night from the TPC Boston.