Shane Lowry could not repeat the heroics of his second round 64, however, the Offaly man remains in the hunt for his maiden major at the PGA Championship following a one-under 69 at Bellerive Country Club.
Brooks Koepka is the leader through three rounds at the PGA Championship. After making a bogey at No. 4, he rolled in a 33-foot putt for birdie at the par-3 No. 6 hole.
Day, who finished second at the 2016 PGA Championship and tied ninth at last year's edition, is joined in a share of sixth by several others including defending champion Justin Thomas and Tiger Woods (66).
Woods hit his drive at the fourth hole into thick rough to the left of the fairway, and he took a furious rip into the thick grass to advance the ball up the fairway at the par-4.
Seeking to add a second major title to his 2013 Masters triumph, Scott will tee off in the last group at the year's final major alongside two-time US Open victor Koepka. Woods reached the green in two thanks to a fantastic approach shot that gave him a makeable eagle putt. Spieth didn't get under par for the tournament until his seventh hole Friday - the par-3 16th hole - and he managed to do enough right for a 66 to get within seven shots of the lead.
While inclement weather forced a delay in the second round of the PGA Championship on Friday, Gary Woodland was already in the clubhouse with the lead.
He parred every hole on the back nine and his 66 matched his lowest round in a major this year, but he was a little disappointed, not least with a three-putt at the par-five 17th. He won in the penultimate group at the U.S. Open each of the last two years. "I was giving him crap because he let us down on the back nine with only three birdies". A heavy rainstorm on Friday night will produce even lower scores than Bellerive saw on Friday.
In only one of Woods' 14 major titles did he come from as far back as six shots with 36 holes remaining - the 2005 Masters. Watching Finau make all those birdies, Furyk "didn't say anything, but he was just shaking his head", Finau said. "St. Louis has never seen Tiger up close, so it's pretty insane and it makes it a lot more fun". I said to my caddie a couple of holes before it was the most fun I'd ever had and then that happened. Woods then birdied the par-5 6th, which played as the hardest hole on the course for the field. If you do that well, and, obviously, in there you're going to make those putts.
He signed for a bitterly disappointing 71 to be tied 44th, and his chances of getting back on the major trail haven't survived until the final round on a course tailor-made for his game.