Hale Irwin, who won the 1990 edition of the US Open at 45 years and 15 days old, is the oldest US Open victor to date so the stats are really against Phil Mickelson, who turns 49 on the Sunday of this year's edition.
Phil Mickelson is in control at the Pebble Beach Pro-Am, but he must return on Monday to close out a win.
For years, Mickelson, 48, has rebuffed talk of his age, choosing to focus on aspects that encouraged him going forward even through a four-year stretch without a victory.
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.
The most recent discovery was something he dropped after Friday's round about some extra distance he picked up.
"I was playing well and I just didn't take all the factors into account".
"My short irons were great and I hit the ball a long way and that's why I'm optimistic heading into April". "So I ended up thanking him this morning for making that tough call because I made it tougher for him and but he did the right thing in protecting both of us".
Mickelson finished at 19-under 268. A missed cut in Phoenix, Mickelson said, was due in part to a driver experimentation that he quickly abandoned.More news: Scores dead after consuming bootleg liquor
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Following the event at Pebble Beach, the action shifts to the Genesis Open on February 14, which is played at the Riviera Country Club.
He is now ranked 17th in the world and has positioned himself for a run at another Presidents Cup team.
The delay kept Mickelson from finishing off a remarkable rally until it was too dark to finish the last two holes.
The U.S. Open will be at Pebble Beach this year but Phil Mickelson does not think winning there on Monday will aid his Grand Slam chances. I would love nothing more than to add to it five months from now, but that's so far down the road.
Expanding on why he felt his performance at Pebble Beach boded well for Augusta, the three-time Masters victor said: "The two areas that you have to be at your best to play well at Augusta are you've got to hit the ball long and have a really good short game and those were two areas that were very helpful here".
There was never a reasonable chance to finish in his pro-am format, with mostly foursomes across the golf course. But that talk is for a different day.
Check out the top 5 shots of the week from the 2019 AT&T Pebble Beach Pro-Am and Oasis Championship, featuring Jordan Spieth, Scott Stallings, Brandt Snedeker, Tony Romo, and Rocco Mediate. He finished three shots behind Graeme McDowell in 2010, the last U.S. Open at Pebble.