Sun staff photos can be ordered by visiting our SmugMug site.
He sits in a tie for seventh after a wild U.S. Open Saturday of low winds and lower scores.
Rory McIlroy at least had the satisfaction of four birdies in his last six holes to improve by seven shots on his opening 78, while Jason Day's 75 left him 10 over and world number one and defending champion Dustin Johnson finished four over. Among those trying to chase him down is Paul Casey of England, who was one shot behind.
Around 70 minutes earlier, compatriot Patrick Reed had faced a similar length putt to Thomas on the 18th to shoot eight under but missed his birdie attempt and had to settle for a 65.
Harman, Fleetwood and Koepka have posted scores of 67-70 in each of the first two rounds.
Reed shot a 7-under 65 in the third round of the U.S. Open, equaling the low total of the tournament.
Last year's victor and world number one Johnson, who arrived late in Wisconsin after staying in California for the birth of his second child, added a one-over-par 73 to his opening 75 to finish on four-over 148, three off the cut line. There's no telling. But I'm confident that I am prepared for whatever happens, whether something bad happens or something good happens.
When the carnage was over, only four of the top 12 players in the world rankings - Hideki Matsuyama, Jordan Spieth, Sergio Garcia and Rickie Fowler - were still in the tournament. Especially if they put together something transcendental on Moving Day.
It was the second straight year McIlroy missed the cut at the U.S. Open. Players are hitting it in regulation only 42.8 percent of the time, compared to 64.9 percent for all greens at Erin Hills.
"It doesn't need to be too much of a change for this golf course to play pretty hard", he said.
NOTEWORTHY: A 94-year-old man stopped breathing while in a grandstand on the sixth hole and died of what officials said appeared to be natural causes.
Next up is a weekend without most of the biggest names in golf.
Jordan Spieth, the 2015 US Open victor snuck just inside the cut-line at even-par with a 71. He three-putted the 12 and 13 holes. Jack Nicklaus and Tom Weiskopf each shot 7-under 63 in the first round at Baltusrol in the 1980 U.S. Open.
"Guess what? We get to go home today because Daddy played poorly", Day said to his son, Dash, before walking over to sign autographs. I couldn't possibly shoot any higher than I did.
The U.S. Open is known for putting a premium on par, even as the USGA tries to convince golf fans that it's not preoccupied with par.
He had a chat with swing coach Michael Bannon on Thursday night, and Bannon had observed that McIlroy's transition down from the top was simply too quick.
Casey said he couldn't remember the last time he had five birdies in a row or an eight in a competitive round.
Continuing to downplay Thomas' admirable efforts in favor of trumpeting his own past glories, two-time major champion Miller added: "For one, the greatness of my round is the 63 in the last round of the U.S. Open to win by one".
The little lefty from Georgia has a chance to make a little history at Erin Hills. It's all very well being able to boom it on the longest track in US Open history, but get out of position and you'll soon be jiggered.
The cut has been made at +1 ahead of the final two days of action at Erin Hills, Wisconsin. The players making the cut will lose a little bit of yardage on the weekend through softer ground and less roll.
None of the leaders had as shaky a stretch as Casey, who made 8 on the par-5 14th hole - after hitting into the fescue and almost whiffing on his swing to get out - and bogeyed the next hole.
"Not every day you enjoy a round of golf with an eight on the card", Casey said.