GULLANE, Scotland —
Westwood, who started the day with a two-shot lead, fell behind for the first time all day with a bogey on the par-3 13th hole and never recovered, closing with a 75.
Scott took the outright lead with a 4-foot birdie on the 11th, and then closed as sloppily as he did last year when he threw away the Open at Royal Lytham & St. Annes. He made four straight bogeys starting at the 13th, and a final bogey on the 18th gave him a 72. At least he has a green jacket from the Master to console him.
Woods, in his best position to win a major since the crisis in his personal life, stumbled badly on his way to a 74 and was never a serious challenger.
"We know that he goes for broke, and if that's how he was feeling and pulling it off, he's got the ability to do that," Scott said about Mickelson. "And he's gone and won an Open easily. So every credit to him."
At the end of a rough-and-tumble week along the Firth of Forth, Mickelson was the only player under par at 3-under 283. In his four other majors — three Masters and one PGA Championship — he had never started the final round more than one shot behind.
"I don't care either way how I got this trophy — I got it," Mickelson said. "And it just so happened to be with one of the best rounds of my career, which is really the way I've played my entire career. I've always tried to go out and get it. I don't want anybody to hand it to me. I want to go out and get it. And today, I did."