Thompson was at his best in the middle part of the final round.
He hit a tough chip off the pine straw to 3 feet for par on the 10th, and then hit flawless chips for easy par on the 11th and 14th holes to build a four-shot lead. Not even the late run by Ogilvy was enough to stop him.
"This is everything," Thompson said. "This is a childhood dream come true. I've dreamed of playing out here since I was 7 years old and to win, it's just unbelievable. I just can't put it into words. The whole day was awesome."
It was a mess for Woods.
He lost two balls in a span of eight holes (the other one in the third round Saturday) for what he believes is the first time in his career. He hit into the water on the 11th for another double bogey, and drove into the water on the 16th.
"I just made too many penalties this week," Woods said. "Today is a perfect example. I didn't play that poorly. I had two water balls and a lost ball. Take those away, and I missed two short birdie putts, and it was actually a decent score. So just got to clean up my rounds."
The final round was never going to be easy with the wind whipping on PGA National, and it showed. Of those who finished before the leaders even teed off, only two players managed to break par. Scoring was so difficult that Lucas Glover played the weekend in 2-over par and still tied for fourth.
"You don't move up very often — on tour — over par on the weekend, except for a place like this," Glover said.
Guthrie, who fell behind for good with a bogey on the second hole, did his best to stay in range until hitting his tee shot out of bounds on the 14th for a double bogey. From there, it was only a battle for second place.
Everyone else was long gone.
Westwood failed to save par on consecutive holes on the front nine and could never catch up. Charles Howell III, who started the day three shots behind and needed a win to get to the Masters in his hometown, fell apart on the back nine with a 41 and closed with a 78. Rickie Fowler made three bogeys on the first six holes and was never a factor.