With the $1.2 million winner's paycheck, Poulter moves up to fourth spot in the European Tour's Race to Dubai. The money will also come in handy considering he just treated himself to a new car.
"I've already spent the check last week," he said. "Yes, it was a vehicle and yes, it was very expensive."
Poulter moved up to a No. 15 ranking, one spot better than where he started the season.
Brandt Snedeker followed his career-best 60 in the third round with a 71 and was never a factor. The bigger turnaround belonged to Dustin Johnson, who was 18 shots better than his third-round score. Johnson followed his 84 Saturday by closing with a 66.
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