PEBBLE BEACH, Calif. — Phil Mickelson is closing in on three decades on the PGA Tour and a half-century on Earth, and he still feels his best golf is good enough.
He was at his best at Pebble Beach, and no one had a chance.
A Monday finish brought on by rain and a freak hailstorm was only a minor inconvenience for the 48-year-old Mickelson.
He played two holes just as well as the previous 16 and polished off his bogey-free final round with one last birdie for a 7-under-par 65 and a three-shot victory over Paul Casey in the AT&T Pebble Beach Pro-Am.
Mickelson won at Pebble Beach for the fifth time, matching the record set by Mark O'Meara. He has gone 28 years since his first PGA Tour victory and his 44th, and he joined Tiger Woods as the only players to surpass $90 million in career earnings.
‘‘It’s a lot more work and effort to play at this level,’’ Mickelson said. ‘‘And I have believed for some time that if I play at my best, it will be good enough to win tournaments. The challenge is getting myself to play my best. It’s a lot more work off the course, it’s more time in the gym, it’s more time eating, it’s more time focusing, it’s all these things that go into it.
‘‘And so it’s gratifying to see the results and to finish it off the way I did.’’
Making it even more special is Pebble Beach, where he made his pro debut at the US Open in 1992, where he won the first of his five titles in another Monday finish in 1998 — this one in August because of rain. It’s where his grandfather, Al Santos, was among the first caddies when the course opened in 1919, and Mickelson still uses as a marker the 1900 silver dollar his grandfather kept in his pocket to remind him he was not poor.
Mickelson, who started the final round three shots behind, never came close to a bogey and built a three-shot lead through 16 holes Sunday night when it became too dark to finish.
The final round Sunday had been delayed at the start by one hour because of rain, and then sunshine quickly gave way to hail that covered the greens in a sheet of white and led to a two-hour delay.
When they reconvened Monday, Mickelson completed the last two holes and finished at 19-under 268. Casey needed Mickelson to make a big blunder on the two closing holes, and there was little chance of that.
Casey at least birdied the 18th for a 71 to finish alone in second, the difference of $152,000.
But the final day, and all week, was about the ageless Mickelson. He says he had as much fun winning at Pebble Beach as when he finished one shot behind in the Desert Classic three weeks ago. It’s the thrill of competition. And even at 48, that never gets old.