ORLANDO, Fla. — Tiger Woods made a 25-foot birdie putt on the final hole Sunday to win the Arnold Palmer Invitational by one shot, extending his PGA Tour winning streak to five and keeping intact a perfect season in golf.

In his biggest challenge since this streak began seven months ago, Woods outlasted 45-year-old Bart Bryant and won with a birdie putt on the final hole for the first time in seven years. He turned and slammed his cap to the ground, letting out a roar to celebrate his 64th career victory, tying Ben Hogan at No. 3 on the PGA Tour list.

"I turned a mediocre tournament into a good one," Woods said.

Palmer stood behind the 18th green with thousands of sun-baked fans who have come to expect nothing less from Woods. The King smiled and nodded his head, a royal approval of a captivating conclusion at Bay Hill.

Woods closed with a 6-under 66 and won Bay Hill for the fifth time in his career, becoming the first player in PGA Tour history to win four tournaments at least five times. The others are the Buick Invitational, Bridgestone Invitational and the CA Championship, where he plays next week at Doral as the three-time defending champion.

No wonder some are starting to question whether he will lose again.

Bryant felt hopeless, no different from so many other victims of Woods. He hit all the right shots on the back nine to keep pressure on the world's No. 1 player, and was sitting in the scoring trailer when he heard the loudest cheer of the afternoon.

"That's why he's Tiger Woods," Bryant said. "He has an incredible way of pulling off the shot or the putt when he needs to. He's done it before. He'll do it again."

Not since Bay Hill in 2001 against Phil Mickelson has Woods won a PGA Tour event with a birdie on the 72nd hole to win by a shot, and this was so meaningful that Woods ripped off his cap and slung it to the ground, something he has never done.

Woods said he was so caught up in the moment that when his caddie handed him his cap, he didn't know how it got there.

"I kept telling myself, 'I've done this before. I did it against Phil, and this time it's a little bit deeper into the green and the putt has a little bit more break and it has a little more grain. I've done it before, and I can do it again."'

And he did.

The last time he played, he surpassed Palmer on the career list. This one allowed him to join Hogan, who won 64 times over 21 years, the last victory coming at the 1959 Colonial National Invitational.

Next up is Jack Nicklaus at 73, with Sam Snead's record of 82 victories looking closer each time Woods plays.

"It's pretty amazing to be in that kind of company," Woods said. "I've had an amazing run in my career."