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Phil Mickelson explains the rules change that pays off big time at Pebble Beach

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February 11, 2019

We’ll have to wait until Monday to crown a champion of the AT&T Pebble Beach Pro-Am, as Sunday’s final round was delayed due to inclement weather and the finish was pushed until Monday.

Phil Mickelson leads Paul Casey and Scott Stallings by three, as Mickelson chases his first victory since the 2018 WGC-Mexico Championship.

While the weather has been an issue on the Monterey Peninsula this week, at least the Rules of Golf haven’t given the tournament a negative spin. The 2019 rules changes have been a hot topic in the first two months of the season. First it was putting with the pin in and then knee-high drops, and last week it was caddie alignment that made headlines. (There was also Rickie Fowler’s rare one-stroke penalty in Phoenix, although that wasn’t one of the rules changes.)

But according to Mickelson, one rules change that’s had a big impact on this week, for the better, is Rule 13.1c(2). It covers what’s allowed, and not allowed, on the greens. Mickelson brought this up after his opening round on Thursday and also reiterated his point on Sunday.

“I think that one of the rules changes that came about where you can fix some areas of the green that were caused by other players made a big difference in this tournament for everybody, because around the hole you can smooth out some of the spike marks and indentations,” Mickelson said after his first-round 65 at Monterey Peninsula C.C. “And I think that made a big difference and I think that rule is really turning out to be a good one.”

Mickelson saying the rule will have an impact on this tournament specifically is likely due to poa annua grass on the greens. It’s a grass used often in California and in play on all three greens on the courses used for the AT&T Pebble Beach Pro-Am. It’s difficult to read, gets bumpier later in the day, and with coastal winds and soggy conditions playing into the narrative this week, the opportunity to clean up a spike mark is even more valuable.

Mickelson said it’s not difficult to differentiate natural imperfections in the poa annua compared to marks a player would make on a green. Natural imperfections are not allowed to be fixed.

Phil Mickelson walks down the fairway on Sunday at Pebble Beach.
Phil Mickelson walks down the fairway on Sunday at Pebble Beach.
Getty Images

“You can see the spikes,” Mickelson said. “You can see the spike impression and it makes it pretty easy to identify.”

Speaking of that pesky grass, Mickelson missed a short birdie putt on the par-5 6th on Sunday, and CBS on-course reporter Peter Kostis certainly noticed the poa annua influence.

“That’s why it’s fun,” said Kostis, after the miss. “That is amazing right there. You can aim it a certain way on this type of grass and it sometimes, or most of the time, doesn’t go where you expect it to go.”

Fast forward to the 7th hole, and Mickelson and Casey were talking as Casey waited for a rules official on the 7th green. CBS microphones picked up their conversation.

“I will say this week has been so much more enjoyable being able to fix these [marks],” Mickelson said.

“Without question,” said Casey.

“You get a little two-footer; I think it’s been a real good thing,” Mickelson said.

Come Monday, it could help Mickelson to career PGA Tour victory No. 44.