The almighty Koepka leads seven shots after two record-breaking rounds and a solid third to leave the field in his rear-view mirror at Bethpage, New York.
The defending champion shot a level-par 70 on a windy, sunny Saturday on Long Island to reach 12 under while sharpening his grasp of a fourth title in his last eight majors.
The muscled Floridian will play Sunday alongside fellow countryman Harold Varner III, who leads a haunting quartet alongside another American Luke List, Thailand's Jazz Janewattanond and Koepka & # 39; s good friend Dustin Johnson at five o'clock. , the world No.1.
The 29-year-old Koepka was impregnable this week and mixed his brutal power with a great short game, skillful puttering and seemingly unchangeable, unambiguous posture.
His opening 63 was a record record and his 65 Friday gave him the lowest 36-hole score in history. His seven-man lead in the final round is also an American PGA record.
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& # 39; Tunnel vision & # 39;
Koepka is himself aware of the stacking of the records, but emphasizes that he focuses on winning a second-straight US PGA to deal with back-to-back US Opens.
"I don't care about breaking records," he told Sky Sports. "I'm just trying to win a golf tournament."
If Koepka & # 39; s attitude no longer exists, his golf is anything but that his explosive brand of play has overpowered the infamous Black course of Bethpage this week.
Comparisons are of course made with Tiger Woods in his splendor, after beating the Masters champion with 17 shots in two days and forcing the 15-fold big winner to admit that he is playing a game that few people play with able to live, as Woods did in his heyday.
"Everyone keeps asking, like what else do I do," he told reporters. "I am not – I am just so much more focused, I think I have a tunnel vision."
"It's just something about playing a difficult golf course and understanding. I'm not the best at the birdie fest. I'm better when it's going to be very difficult to play and even par, I like that. Those are my kind of golf courses where it is very stressful to play. I enjoy it. That's what I live for. "
& # 39; I'm going to need some help & # 39;
Johnson and co. Will be desperately looking for some kind of spoke in Koepka's They may be holding on to his back-to-back bogeys on Saturday morning at nine and ten o'clock, or some drives pushed to the right, errors that could multiply if the pressure to try to keep his lead increased.
Or they grab the history books, which state that Scotland's Paul Lawrie came out of a record of 10 shots on the last day to overhaul the confused Jean van de Velde in the 1999 Open at Carnoustie.
Then there are the eight shots Jack Burke Jr picked up at the Masters in 1956, or the seven shot-deficits cleared by Arnold Palmer in the 1960 US Open or John Mahaffey at the American PGA in 1978.
Johnson himself has experience with disappointment with majors and leads that disappear through his hands, such as blowing a three-button ad section in the final round of the 2010 US Open on Pebble Beach.
"I will need some help from him [Koepka] and then I will have to play very, very well," Johnson, the 2016 US Open champion, told reporters.
Koepka, however, has no intention of helping anyone.
"I know if I can get off to a good start, guys have to push, and if you push on this golf course, you make mistakes," he added.
"I just have to have the same mentality, focus on myself and not on someone else, and at the same time remain patient and stay in the moment, and every time I do it, I feel like I'm & # 39 ; I am getting better and better at it. "