Patrick Reed shot an even-par 70 on Friday and holds a one-shot lead at the midway point of the 120th U.S. Open at the Winged Foot West Course in Mamaroneck, N.Y.
Reed has a two-round total of 4-under 136 in an event in which just six golfers are currently under par. Reed had five birdies and five bogeys in an up-and-down round.
Bryson DeChambeau shot a 68 and stands alone in second at 3 under after two trips around the Winged Foot.
Reed is looking forward to the weekend.
"I feel good. I feel ready to go out and put myself in position hopefully tomorrow to have a chance late on Sunday," Reed said. "But I think that's the biggest thing is I feel like the game is where it needs to be. I feel good. I just need to tighten a few things up here or there, but the short game is sharp, and when I play around a place like this, that's what you need."
Justin Thomas struggled to a 3-over 73 after his stellar first-round 65 and is two shots back in a tie for third. Harris English (70 on Friday) and Spain's Rafa Cabrera Bello (70) are also tied for third.
"This isn't exactly a place where you go out and try to shoot 6 or 7 under to catch up," Thomas said. "Just have to stay patient and play my own game. I'm not going to worry about what everyone else is doing because you could shoot 80 just as easily as you could shoot 68."
Jason Kokrak is in sixth place at 1-under 139 after a 71.
DeChambeau was one of just three players to shoot under par on Friday. Japan's Hideki Matsuyama (even-par 140 total) and Bubba Watson (1-over 141) both shot 69s.
"It's an awesome journey for me," DeChambeau said. "I love figuring out all the numbers. I was out here last night. I knew it was going to be cooler, so I waited and was able to hit balls almost in the dark. I knew it was going to be similar conditions. I got my numbers with my wedges and I felt really comfortable today."
The course played much tougher Friday after there were 21 under-par rounds on Thursday, the most in six U.S. Opens at Winged Foot.
The temperature dropped and the winds picked up, and Watson said the change of conditions made things more challenging.
"Yeah, so it was a little bit more wind out there, and then total opposite direction," Watson said. "The holes that played very difficult yesterday are now downwind, so it helps a lot. Number one, gosh -- everybody was hitting little sand wedges in there. Today I think I had a 7-iron in there just because of the cold and the wind. And then it's supposed to be colder tomorrow morning. Just going to keep getting tougher and tougher as the pin locations (change) and the way the weather is."
Xander Schauffele (72) is one of five players tied for seventh at even par. Also part of the group are Matthew Wolff, Brendon Todd, Thomas Pieters of Belgium and Matsuyama.
Schauffele's caddie sent him an article before the round saying the course superintendent was "livid" with Thursday's scores.
"Today was a little harder," Schauffele said. "The pins were there, very U.S. Open-esque. I thought it was still fair, though."
Spain's Jon Rahm (72) is among the five golfers tied for 12th place at 1-over. PGA Tour Golfer of the Year Dustin Johnson (70) is seven shots off the pace at 3 over and tied for 22nd place.
Johnson would need a stellar round on Saturday to put himself among the leaders entering the final round.
"I think still on this golf course with the conditions that we're supposed to have the next couple days, I don't feel like I'm out of it," Johnson said. "I'm going to have to play really well, but I like where I'm at. I think obviously two solid rounds and right back in the mix."
Rickie Fowler struggled to a 77 to drop to 6-over 146, but he made the cut by one shot.
Tiger Woods was among those who are done for the weekend. Woods shot a 7-over 77 for a 150 total.
"On this golf course it's imperative that you hit fairways, and I did not do that," Woods said. "The whole goal of entering an event is to win, and when I don't give myself that opportunity over the weekend, it doesn't feel good."
Others who missed the cut include Collin Morikawa (71 on Friday, 147 total), defending champion Gary Woodland (74, 148), England's Justin Rose (77, 150), Phil Mickelson (74, 153), Jordan Spieth (81, 154) and Spain's Sergio Garcia (81, 155).
Woodland revealed after his round that he has been playing with a torn labrum in his left hip. He will see a specialist on Monday.
John Pak is the lone amateur to make the cut. He is at 5-over 145 after shooting a 76 on Friday.
NOTES: The U.S. Open is being played in September for the first time since 1913 after being postponed from June due to the coronavirus pandemic. ... Six major championships will be played during the 2020-21 PGA Tour season. ... The A.W. Tillinghast-designed West Course opened in 1923 and was renovated by Gil Hanse in 2015. ... Two-time U.S. Open champion Brooks Koepka is not in the field due to injury.
--Field Level Media