Phil Mickelson won the Pebble Beach Pro-Am by three strokes on Monday, equalling Mark O'Meara's record of five victories in the northern California event.
Mickelson will carry a three-shot lead into the final day, sitting at 18 under through 16 holes.
This was Mickelson's fifth AT&T title so it's fair to say he was a tournament specialist before this week but he was still generally a [36.0] chance and he even hit a high of [50.0] before the off. Casey, who traded at a similar price to Lefty pre-event, hit a high of [80.0] and a low of [1.5] in-play.
And sure enough, he managed to visit unknown parts of the Monterey Peninsula with a few wayward tee shots, endured a soggy, bone-numbing array of 5-plus-hour rounds, waited out a Sunday hailstorm that for a time whitened the course, made up a 3-shot deficit on Paul Casey and then - with victory imminent - all but pleaded to finish when all that would have been visible was his chattering teeth.
Casey finished with a birdie that was worth US$152,000 (NZ$225,000) because he wound up alone in second place.
This was the fourth time that Casey had a 54-hole lead of at least two shots on the PGA Tour and failed to win.
He also won the Pro-Am with Don Colleran, the chief sales officer for FedEx.
No doubt, Mickelson wanted to get home to Southern California on Sunday night, and he clearly wasn't concerned about squandering a chance at victory because he couldn't see what he was doing.
Mickelson argued that he could "see just fine" on Sunday evening, moments after sunset with two holes remaining.
"I thanked Paul this morning because I am sometimes in my own little bubble I don't see the big picture", Mickelson said.
Check in for highlights from every tournament plus player interviews, player profiles, tournament previews, swing analysis and all the greatest shots and unbelievable moments.
Casey is three shots behind Mickelson in a tie for second with Scott Stallings.
Mickelson won on American soil for the first time since the Phoenix Open in 2013. 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. He won the British Open that summer in Scotland, and the Mexico Championship previous year.
But the final day, and all week, was about the ageless Mickelson. He finished three shots behind Graeme McDowell in 2010, the last U.S. Open at Pebble. The U.S. Open remains the final piece of the career Grand Slam for Mickelson, who already holds the record with six runner-up finishes. "I'll deal with that in six months".