Phil Mickelson finishes strong to win 1st Open Championship.

Phil Mickelson has won the British Open with a spectacular finish.

Mickelson shot a 5-under 66 Sunday to match the best round of the tournament and win his first claret jug.

The celebration began while there were still four groups on the course.

Lefty birdied four of the last six holes, capped by a 10-footer at the tough 18th to claim his fifth major title.

As soon as the ball dropped in the cup, Mickelson pumped his fists in triumph, knowing it would be hard for anyone to chase down his 3-under 281 total.

He headed off to hug his wife and kids while his caddie broke down in tears.

Lee Westwood started the day with a two-stroke lead but his chances ended when he failed to make eagle at the 17th.

Adam Scott briefly held the outright lead on the back side, but four straight bogeys ended his hopes of a second major title.

Tiger Woods shot a final-round, 3-over-par 74 at Muirfield Golf Club, leaving him in a tie for sixth, five shots behind Claret Jug winner Phil Mickelson.

Woods remains stuck on 14 majors and has now gone 17 starts in the game's four biggest tournaments without adding another check mark to his résumé.

Woods said he will take a week off, then return Aug. 1-4 at the World Golf Championships-Bridgestone Invitational at Firestone in Akron, Ohio.

His next chance to end his major drought comes the following week in the PGA Championship at Oak Hill in Rochester, N.Y.