The range at 2017 PGA Championship host Quail Hollow in Charlotte couldn't contain his massive, 350-yard drives earlier in the week.
Jordan Spieth bounced back from a string of bogeys with two closing birdies to salvage a competitive one-over-par 72 on the opening day of the PGA Championship.
There was a failed 10-footer for par on the 527-yard, par-4 first, a 12-footer for birdie on No. 2 that stayed out, a 15-footer for another birdie on the next hole the didn't go in.
"If I'm five back at the start of the day, I've got to be less than five back after Friday to really feel like I can play the way this golf course needs to be played and still be able to win". Michael said, 'Let's get three looks and see what happens.' I had three looks and nearly got back all the way to even.
"I know people who work for the Trump organisation who joke with me, "You're the only one who has got a cheque from the President".
The moment that summed up Spieth's day with the putter best (or is it worst)? I hit a lot of fairways. "But when I had the chances that I had and I just couldn't get the ball to go in on the greens, that is when I get the most frustrated I can get out there".
"If I would have shot one over and didn't strike it well and everything was average, it would have been fine". The Englishman would end the day with two birdies but also five bogeys and a pair of doubles.
Then came the meltdown on No. 18.
"I felt awful about it", said Koepka, who would bogey the hole.
"I feel like I played pretty solid", the 27-year-old Koepka said.
"But you know, obviously I've gone through a little bit of a plateau here, and hopefully I can change that this week, especially with the past experiences that I've had competing in the PGA Championship", Day added.
Koepka's tee shot on the 16th at Quail Hollow - his seventh hole of the day - was flying towards spectators to the right of the fairway when it hit a marshal who was standing just inside the ropes.