Friday at Oakmont Country Club looked totally different from Thursday as the weather was picture perfect as players either came back to complete their first round after suspension or just get started with their tournament.

Those that did not get to play on Thursday due to weather played up to 36 holes on Friday, completing the first round and many completed their second round as well, while those that played Thursday only had to finish up their first round. The physical and mental toll that Oakmont can deliver was magnified by having to play 36 holes, which some handled better than others.

Among those that handled the 36 holes of golf well, and completed both rounds, was Dustin Johnson, who is tied for the lead at 4-under after going 67-69 in his two rounds on Friday. After missing the green on his first two holes of the day, Johnson hit 25 consecutive greens in regulation over the course of his two rounds and was bogey-free for his first 27 holes of the day.

Along with Johnson, Sergio Garcia played well -- in the same group -- as he shot 68-70 to hang close at 2 under. Jason Day stumbled early with a 76, but gathered himself in his second round and is now 5 over (currently T56) for the tournament with three holes left to play on Saturday morning.

Here is how the leaderboard stands going into Saturday, with some players having completed their second rounds, others still in progress and many still yet to begin.

T1. Dustin Johnson (-4, F): Johnson gave himself so many opportunities that his 67-69 performance on Friday feels somewhat disappointing even though he's tied for the lead -- and the clubhouse leader after two rounds. He missed a number of make-able birdie putts, but did leave himself mostly stress-free pars, which will help ease the stress of 36 holes at Oakmont. Johnson will need the putter to come alive on the weekend if he wants to give himself a stress-free win for his first major.

T1. Andrew Landry (-4, 7:11 a.m.): Landry walked out and sank a birdie putt to start and end his Friday at Oakmont. He gets to say he held the overnight lead on Friday at a U.S. Open if nothing else and will begin his second round bright and early, but Oakmont will play very different on Saturday than it did for his first round.

3. Lee Westwood (-3, 8:28 a.m.): Westwood finished his first round in the morning and remains one shot back heading into his second round of play on Saturday despite not having played yet.

T4. Scott Piercy (-2, F): Piercy, like Johnson, had a chance to go lower, but can't be mad about being 2 under going into the weekend.

T4. Sergio Garcia (-2, F): Garcia had to scramble late and he needed a 50-footer for par on his final hole, No. 9, to stay at 2 under. That putt should have him confident going into the weekend.

T4. Shane Lowry (-2, 8:50 a.m.):

Lowry cleaned up on his back nine (-3) after starting +1 through the front. He finished T9 at Chambers Bay last year and looks to be in position to stay at the top of the leaderboard if he can keep it up Saturday morning.

T7. Daniel Summerhays (-1, F): Summerhays went 74-65 (!!!) to get to 1 under going to the weekend. The 65 is the low round of the tournament, and he did so in the afternoon when the course got significantly tougher.

Others at T7. Andy Sullivan (-1, F), Jim Furyk (-1, F), Scottie Scheffler (a) (-1, 7:00 a.m.), Kevin Streelman (-1, 7:44 a.m.), Bubba Watson (-1, 8:06 a.m.), Danny Lee (-1, 8:28 a.m.)

Notables outside the top 10:

T14. Adam Scott (+1, 15): Scott has to finish up his last three holes, but he's positioned himself pretty well through most of two rounds.

T29. Jordan Spieth (+2, 8:50 p.m.): Spieth needs something under par on Saturday morning to feel like he's really in contention going into the weekend, but he's in OK shape -- certainly better than the rest of the Big Three.

T56. Jason Day (+5, 15): Day looked like he was in serious trouble after his opening 76, but barring disaster on Saturday morning, he will at least be around for the weekend.

T72. Rickie Fowler (+6, 8:39 a.m.): Fowler is just outside the present cut line, but you have to figure that it will move down to at least 6 over if not 7 over by the end of tomorrow's second round. That said, he desperately needs a quality round of even or better tomorrow.

T93. Rory McIlroy (+7, 8:39 a.m.): McIlroy and Fowler have a chance to feed off of each other on Saturday morning. The group's vibe was bad on Thursday as both struggled, but maybe the two can challenge each other and push each other to go low. They need it.

Thanks for stopping by. Be sure to return to CBS Sports each day throughout the U.S. Open for live blogs and recaps from Oakmont.

Dustin Johnson Oakmont
Dustin Johnson tore up Oakmont on Friday. USATSI