Britain's Luke Donald clinched the PGA Tour money list title with victory at the Disney Classic in Florida.
The world number one played a magnificent back nine which included six birdies on the way to a 64.
Donald's chances looked far from certain with a bogey six on the eighth but his round came alive on the back nine.
Playing partner and PGA money list rival Webb Simpson finished the tournament four shots behind Donald.
The triumph means Englishman Donald is on course to become the first player to top the money lists in both the United States and Europe.
Britain's Luke Donald clinched the PGA Tour money list title with victory at the Disney Classic in Florida.
The world number one played a magnificent back nine which included six birdies on the way to a 64.
Donald's chances looked far from certain with a bogey six on the eighth but his round came alive on the back nine.
Playing partner and PGA money list rival Webb Simpson finished the tournament four shots behind Donald.
The triumph means Englishman Donald is on course to become the first player to top the money lists in both the United States and Europe.
"I wasn't too happy with my swing earlier in the week but it's nice to do it under pressure. All credit to [coach] Pat Goss and the good team I have around me.
"It's been a tremendous year for me. I answered a lot of critics' questions coming here knowing I had to win, and doing it."
A gracious Simpson conceded: "I just ran into a buzz saw! I expected the best player in the world to play well but I didn't quite expect six birdies in a row. I didn't quite have my game where I wanted it."
Donald's Disney win was his fourth PGA career success but his first PGA strokeplay victory since the Honda Classic in 2006.
Donald is still chasing his first major victory, but has posted 14 top 10 finishes in 19 US tournaments in 2011.
The £531,000 Disney Classic cheque took him on to a total of £4.19m ($6.68m) US winnings this year, with Webb Simpson finishing on £3.98m ($6.34m).
Donald currently leads the European Tour money list with £3.34m in earnings, £1.14m clear of Northern Ireland's Rory McIlroy.
