By the time the second round was over Friday, Masters champion Jordan Spieth and Patrick Reed had come up big for a share of the lead at the U.S. Open while the reigning champion, Martin Kaymer, was among the many washed out by Chambers Bay.
Spieth improved on his first round score with a three-under par 67 on Friday to take the lead early in the day before Thursday's leaders took the course for the 115th U.S. Open at University Place, Wash.
Reed made his way up the leaderboard with a one-under par 69 on Friday, but to get there he needed five birdies and an eagle to overcome six bogeys.
He had a chance to take into the weekend by himself but on the last hole of the day he went bogey.
Dustin Johnson and Henrik Stenson were the best Thursday, but both fell behind on Friday. Johnson shot a 35 on the front nine and 36 on the back. Consecutive bogeys on 17 and 18 dropped him to four-under, tied for third with Branden Grace.
Stenson shot a four-over par 74 on the round, dropping to a tie at 12th after leading the first round.
Kaymer had both double and a triple bogey through two rounds at Chambers Bay, as he struggled to six-over, missing the cut.
Tiger Woods didn't do much better Friday as the three-time U.S. Open champion shot a six-over 76 in the second round, which put him at 16-over, well below the cutline of five-over, ending his time at Chambers Bay.
Mickelson finished three-over with just one birdie Friday. McIlroy saved himself from the cut with an eagle on No. 12, and ended up four-over headed into the third round.
Phil Mickelson, who has finished second at the U.S. Open six times, has shot as many bogeys in his second round dropping him to four-over par and in danger of missing the cut -- projected to be at five-over.
Rory McIlryoy, who had been in danger of slipping to that cut line, fired an eagle on No. 12, which has surrendered six in the second round at 284 yards and 11 on Thursday at 317 yards. McIlroy is two-over overall, tied for 30th, with five holes left in the second round.
Johnson birdied the 506 yard par 4 seventh for his second birdie of the day. That's where Reed went the other direction with a bogey.
Johnson followed No. 7 with a birdie on No. 8 before hitting a bogey-city on the last hole of the front nine.
Johson's misstep allowed Reed to recover with a birdie on No. 8, which gave him three for the round, to rejoin Johnson atop the leaderboard at six-under.
Henrik Stenson shot two bogeys through the back nine and has dropped to three-under for the championship, tied at fifth.
Flirting with the cut line -- projected at five-over -- are reigning U.S. Open champion Martin Kaymer at four-over and No. 1 golfer in the world Rory McIlroy, three-over, with nine holes left to play.
Reed, who finished four-under in the first round, two-putted to birdie on the second hole and birdied the par 4 fourth hole to initially take the lead before Dustin Johnson recovered from an early bogey with two birdies on the front nine. Reed and Johnson are tied at six-under.
Jordan Spieth, who finished earlier, at five-under is in sole possesion of third ahead of Brandon Grace who shot a three-under 67 in the second round to move up to four-under overall.
Henrik Stenson began the round as one of the overall leaders, went bogey-bogey on holes 14 and 15 -- holes he had birdies on Thursday -- to drop to three-under, tied for sixth through six holes.
Other big names struggling with the afternoon tee-times include Phil Mickelson, who has carded three bogeys on the back nine. He's about to get started on the No. 1 hole.
Rory McIlroy was two over to begin the day but sits even through six holes with one bogey and one birdie.
Also challenging the top of the leaderboard late in the afternoon is Brandt Snedeker, who is one-under through seven holes and two-under overall, moving him into a tie at 10th.
Johnson, who started at the first hole, and Stenson, who began at the 10th, both railed off back-to-back pars before the 30-year-old's drive found the rough off the fairway at the third hole, and his next shot wound up in the leftside bunker.
Johnson settled for bogey as he dropped to one-over on the round and four-under for the championship.
Yesterday, Stenson had four birdies on the back nine beginning with three in a row starting at No. 14. He's at the 13th hole now.
As the afternoon session gets underway, Jordan Spieth was the one who emerged from the morning session as a contender. He is currently tied for first with Dustin Johnson and Henrik Stenson at 5 under par.
Johnson and Stenson have not teed off yet.
One thing the golfers have been dealing with is the length of the course and the usual summer heat. Jason Day collapsed on the course on his last hole but was able to get up and finish his round. He was then taken away by van to receive fluids for dehydration.
The projected cut is between 4 and 5 over. The biggest name to miss it will be Tiger Woods, who finished the two days 16 over par.
Behind the trio at the top are Branden Grace and Patrick Reed at 4 under. Reed has not teed off.
At 3 under are Joost Luiten, Tony Finau, Daniel Summerhays, Ben Martin and Matt Kuchar.
Daniel Summerhays seems to be the hot golfer of the day, moving into a four-way tie for first in the second round of the U.S. Open. Summerhays has six birdies and one bogey through 14 holes and has the low round so far. He is tied with Jordan Spieth, Dustin Johnson and Henrik Stenson for the lead at 5-under par.
Summerhays, who tied off on the 10th hole, bogied his first hole but came back with birdies on 12, 13, 17, 1, 3 and 4.
Johnson and Stenson have yet to tee off.
The course is living up to its difficult reputation a little more on Friday as only 25 of the 156 golfers are under par. The cut line hasn’t been set yet but it will likely be between 4 and 6 over par depending on how the course plays in the afternoon.
Branden Grace, Ben Martin and Patrick Reed are a stroke back at 4 under. Matt Kuchar is at 3 under. Reed and Kuchar have yet to tee off.
Jordan Spieth is back in a tie for first place as play in the second round of the U.S. Open works its way toward five hours.
Spieth’s 5 under ties him with Dustin Johnson and Henrik Stenson, who have yet to tee off.
Spieth’s 3 under for the day is tied with several others for the current best round on Friday.
Ben Martin and Patrick Reed join Grace at 4 under, one shot off the lead.
Jordan Spieth took the lead early in the second round of the U.S. Open. And then he played the 18th hole.
The Masters winner birdied four of the first seven holes to start his round. Spieth teed off on the back nine. He took the lead at 6 under when he sank an 11-foot putt on the 226-yard 17th hole. He also made putts of eight feet on the 10th hole, 15-feet on the 14th and 24 feet on the 15th.
But as he went to 18 (his ninth hole of the day) Spieth didn’t reach the green until his fourth shot after hitting it in the rough and then a greenside bunker. He two-putted from 25 feet for a double bogey.
Dustin Johnson and Henrik Stenson are leading at 5 under. They tee off after 2 p.m.
Branden Grace (-3 under for the day), Brian Campbell (-1) and Patrick Reed (hasn’t teed off) join Spieth at 4 under par.
Tiger Woods chances of making the cut continue to be remote as he is 1 over for the day and 11 over for the tournament.
Amateur Brian Campbell and Masters winner Jordan Spieth have joined the top of the leaderboard in early play in round two of the U.S. Open.
Spieth has birdied three of the first six holes to be at 5 under. He started on the back nine and made an eight-foot putt on the 483-yard 10th hole. He followed that up with 15-foot putt for birdie on the 513-yard 14th hole and a 24-foot putt on the 144-yard 15th hole.
Campbell made birdies when he sank a 23-foot putt on the 403-yard second hole and then made a 20-foot putt on the 207-yard third hole.
He also joins leaders Henrik Stenson and Dustin Johnson at 5 under. They tee off in the mid-afternoon.
Patrick Reed, who has yet to tee off, is alone at 4 under and Ben Martin and Matt Kuchar are at 3 under.
Jordan Spieth, who hasn’t done much since winning the Masters, is on the move during early play in Friday’s second round of the U.S. Open. He is 3 under after three holes and 1 under for the day. He joins Brian Campbell and Matt Kuchar at that score.
Campbell, the highest scoring amateur so far, parred his first hole of the day.
The leaders, Henrik Stenson and Dustin Johnson at 5 under, do not tee off until mid-afternoon.
Jamie Lovemark is also making a move and sits at 2 under after seven holes, after shooting even par in the first round.
Ben Martin, who started the day at 3 under, dropped a stroke by bogeying the first hole.
Tiger Woods remains at 10 over after a bogey on the first hole and a birdie on third.
Friday’s round two of the U.S. Open got off to a sleepy start as most of the leaders are playing in the afternoon session.
Henrik Stenson and Dustin Johnson are topping the leaderboard at 5 under.
Ben Marsh at 3 under tees off around 8:30 a.m. and amateur Brian Campbell, also at 3 under, hits the course at 9:01 p.m.
The only two players in the red currently on the course are Geoff Ogilvy and Tony Finau, who have held their position a 1 under after one hole.
There is a strange curiosity to see if Tiger Woods, who shot his third round in the 80s this year on Thursday, can recover when he tees off at 8:28. He is 10 over par.
In many ways, Chambers Bay lived up to its nefarious reputation Thursday during the first round of the U.S. Open. Tiger Woods, Rickie Fowler and Graeme McDowell were among those who struggled on the course's parched greens and meandering links.
For others, predictions of six-hour rounds and high scores never came to fruition.
Dustin Johnson and Henrik Stenson share the lead heading into the second round of the U.S. Open on Friday after carding a pair of 5-under-par 65s over the first 18 holes. Maintaining that lead won't be easy -- four other golfers, including 22-year-old amateur Brian Campbell -- trail them by only two strokes.
Matt Kuchar (-3), Jason Dufner (-2), Jordan Spieth (-2), Phil Mickelson (-1), Bubba Watson (even), Sergio Garcia (E) and Adam Scott (E) are among the notable names who could vault to the top of the leaderboard with a solid performance today.
The round starts at 7 a.m. PDT. The final group of golfers are scheduled to tee off at 3:12 p.m.
Be sure to check back here for live updates once the round gets underway.
Staff writer Austin Knoblauch contributed to this report.