Brian Harman leads by one shot going into the final round of the US Open, but the big story of the day during round 3 at the US Open was Justin Thomas shooting a 63 the lowest round in the history of the tournament.
The 27-year-old Koepka birdied No. 14 and 15 to open a three-stroke lead.
Furyk reached 10-under 200 with a 67 in the third round at Olympia Fields, giving him a three-shot lead over Stephen Leaney of Australia.
The fifth hole was played as a 111-yard par 3 instead of a par 5 because of the flooding from overnight rain. Still, it looked decidedly odd to see him complete his 36th hole on Friday with a tap-in birdie on the short ninth, then force a self-conscious smile before heading dejectedly to the recorder's area.
Brooks Koepka (-11) - Focus, determination and strength: Those are the three most obvious traits Koepka exudes while strolling down the fairways. The ball hit just short of the green and popped forward and rolled 8 feet, 1 inch past the hole.
There will be an 18-hole playoff on Monday if the leaders are tied after 72 holes. He then calmly sank the putt for the record round and to take a two-shot lead into the clubhouse.
He carded nine birdies and two bogeys before hitting his second shot to six feet on the par-5 18th and tapped in for eagle to become the 29th golfer to shoot 63 at the majors.
But this is still an impressive scorecard. He also extends the streak of first-time major winners to seven.
ERIN, Wisconsin After days of being humbled, Erin Hills turned nasty for the U.S. Open's final round on Sunday as heavy winds pummelled the layout, adding an intriguing wrinkle to the year's second major. And because of that you can go out and play some great golf, but you have a bunch of guys out there that can play some good golf, as well.More news: Wind howling as final round at Erin Hills gets under way
"I got here by working hard and staying in the moment", said the Georgian, a man clearly in love with cliches. Spieth made birdies on the first two holes, both of which are playing downwind. By the end of a wild and wide-open Saturday, five players were double digits under par. It was shot at Oakmont when he won, but that was a par 70 course.
Reed, a fiery member of the US Ryder Cup team, said he had benefited from taking a more relaxed approach to the major. "I was just happy that I was the one that was able to take advantage of it today". "I've pictured winning the U.S. Open a lot of times before".
He had a chance to extend his lead to two but missed an 11-footer for birdie on 18.
While stronger winds are expected on Sunday, Thomas - yet to finish in the top 10 of a major - said the soft greens during the third round helped. "I don't know why". Tom Weiskopf shot 75 after his and Vijay Singh shot 72 to follow his 63.
This was Reed's day before Thomas raised the bar, Fleetwood refused to be intimidated - aside from one aberration on his final hole - and Harman flew under the radar.
"I couldn't have shot any higher", Johnson said.
"It's not going to be an easy day, for sure", Fowler said.
"I was able to get to a few under by just accepting the fact that the putt might miss instead of having to have it be ideal".