ARDMORE, Pa. -- Phil Mickelson made his first birdie on his last putt. Billy Horschel never missed a green. It was all they could do to barely break par against Merion, which is turning out to be the real star of this U.S. Open. Nearly half the field did not finish the second round when it was suspended by darkness. Moments after the horn sounded to stop play, Mickelson opted to finish his round and drilled a 20-foot birdie putt for a 2-over 72. That gave him a share of the clubhouse lead with Horschel, who made it as easy as possible by hitting every green in regulation for a 67. They were at 1-under 139. With play resuming Saturday morning, it was becoming clear that this U.S. Open might be up for grabs until the very end. Tiger Woods, who grimaced with every shot out of the rough because of pain in his left elbow, was at 3-over 143 and still very much in the game. "I dont know how anyone is going to separate too far from the field," Mickelson said. "There might be a hot round tomorrow, and they might get a hot round on Sunday, but unlikely to be the same player." No one was hotter than Horschel, playing in his first U.S. Open since he was a 19-year-old in college. Nothing is tougher than Merion, the little course in the tony suburbs of Philadelphia that even in rain-softened conditions is showing plenty of might. And to think there was chatter at the start of the week about the potential for the first 62 in major championship history. "Perhaps next time you guys will believe when we say its really not that easy, that its really not that easy," Geoff Ogilvy said after a 70. That put him at 4-over 144, which gave him and dozens of others a legitimate shot going into the weekend. Luke Donald (72), Justin Rose (69) and Steve Stricker (69) were at even-par 140. The surprise were a pair of amateurs -- Michael Kim of Cal and Cheng-Tsung Pan of Taiwan. They were 2 under for their round and among those who didnt finish. Mike Weir of Brights Grove, Ont., is 5 over through 10 holes. His second round included a birdie, two bogeys, and a double-bogey before play was halted. Mackenzie Hughes of Dundas, Ont., and David Hearn of Brantford, Ont., are over the projected cut line of 7 over as it stands. Both sit at 9 over but have time to recover -- Hughes has played nine holes in his second round, while Hearn is through 10. Calgarys Ryan Yip is 11 over for the tournament through 16 holes, while Adam Hadwin of Abbotsford, B.C., finished his second round at 16-over 157. The long day, brought on by storm delays on Thursday, began with cool conditions and patches of light rain that eventually gave way to sunshine. That led players to wonder how much tougher Merion will be once it starts to dry out. "Its not as easy as people think," defending champion Webb Simpson said after a 75 put him six shots behind the clubhouse lead. "I heard 15, 16 under floating around. And its going to be a normal U.S. Open winning score, I think." Horschel hit all 18 greens in regulation, a stellar achievement at a regular tour event, let alone the U.S. Open. It sent USGA officials searching for hours to find the last time anyone failed to miss a green in the toughest test in golf. Records of that detail only go back as far as 1989. That last documentation of someone doing that was Johnny Miller when he closed with a 63 at Oakmont to win in 1973. David Graham used his putter on every hole -- three from the fringe -- when he shot 67 to win the 1981 U.S. Open at Merion. "I didnt know I hit every green until I walked off 18," Horschel said. "Its a cool thing. But like I said, its not the first time Ive hit all 18 greens. Ive done it plenty of times in my career. Obviously, its at a U.S. Open, but I think the softness of the greens helped that." Pan played nine holes and was even par, along with Ian Poulter, who was plodding along in plaid at 1 under for his round through 14 holes. John Senden of Australia had a 71 and Nicolas Colsaerts of Belgium shot 72 to finish at 1-over 141. Mickelson, equipped with a full night of rest after his cross-country trip Wednesday from his daughters eighth-grade graduation in San Diego, began with a three-putt bogey and appeared ready to pull away with a shot that nearly spun back into the hole at No. 8. He missed the birdie putt from 4 feet. Then he hit a beautiful tee shot over the water to a dangerous front pin on the par-3 ninth to about 7 feet. He missed that one, too. Lefty three-putted from 20 feet on No. 12, and then flew a wedge over the green into a plugged lie for bogey on the par-3 13th. He kept battling until ending on a sweet note. With that birdie putt on his final hole, Mickelson was under par through 36 holes for the seventh time in the U.S. Open. The previous six times, he was a threat to win on Sunday. Mickelson has five silver medals as a runner-up, and all he wants is another chance. "I just like being in the mix," he said. "I think its fun having a chance heading into the weekend. The way I have control off the tee and as good as the putter is -- even though it didnt show today -- Im very excited about the opportunity this weekend." Horschel doesnt lack for confidence, even though the 26-year-old from Florida won for the first time on the PGA Tour just two months ago in New Orleans. He is an explosive player, capable of running off birdies without notice. For this championship that meant keeping the ball in play. His only bogey was on the 13th hole, the short par 3 and the easiest at Merion. "I was not in the zone, trust me," Horschel said. "This golf course, even though its soft, is still a tough golf course. I know what in the zone is for me. I dont get nervous, I just see the shot and go. And I saw the shot and I went with it, but I was still nervous with a lot of them. Your misses here can be bad if you miss in the wrong spot." Grahams great round won him the U.S. Open. Horschel still has a long way to go. Considering this packed leaderboard, it feels as though the tournament hasnt even started. For all his travails, Woods was only four shots behind. So was Rory McIlroy, who also had a 70. "It tests every aspect of your game," McIlroy said. "There were people talking about 62s and 63s at the start of the week and, I mean, I never saw that at all. I still think that something very little under par is going to win this week. If or if not that, around even par." Indeed, the real winner so far has been Merion. For such a short course -- it measured 6,901 yards from tee to wicker basket -- this century-old track had everyones attention. "You were convinced it was going to be scoring records and 62s and obnoxious scoring," Ogilvy said. "Did one player say that? Not many, anyway. The players said it was pretty hard, didnt they? Today was hard." Everything looked like a grind for Woods, who said he first hurt his left arm at The Players Championship -- he didnt say where or how -- when he won at the TPC Sawgrass a month ago. He dangled the arm and occasionally grimaced with shots out of the rough on No. 12, No. 4 and No. 8. He was more interested in his game, and that didnt cause him much pain at all. And even though he was halfway through his quest to end five years without a major, Woods was keeping his head down. "Just keep grinding," he said. "You just dont ever know what the winning score is going to be. You dont know if the guys are going to come back. We have a long way to go, and these conditions arent going to get any easier." TSN.ca will deliver live streaming of the 11th and 18th holes, along with a daily marquee group for all four rounds. TSN Digital platforms will also feature up-to-the-minute news, daily highlights, as well as Bob Weeks popular golf blog. Weeks will also answer fan questions on Twitter through @bobatscoregolf, while TSN.ca will feature tweets from Weeks, Jim Nelford, the USGA, and the official Twitter feed of the U.S. Open. All rounds are also available on TSN Radio 1050 in Toronto and TEAM 1410 in Vancouver, and the third and final rounds can be heard on TSN Radio 690 in Montreal and TEAM 1200 in Ottawa. Upcoming U.S. Open coverage on TSN Saturday, June 15• 11am et - Third Round Preview Show • Noon et - Third Round • Midnight et - Third Round Highlight Show Sunday, June 16• 11am et - Final Round Preview Show • Noon et - Final Round • Midnight et - Final Round Highlight Show Air Max 180 Femme . Tuesdays surgery at Atlantas Piedmont Hospital was performed by Dr. Xavier Duralde and Hawks team physician Dr. Michael Bernot. Nike Presto Homme Pas Cher . Louis Rams wide receiver Stedman Bailey last Sunday. The fine is the fourth this season for Goldson. He was fined $30,000 for a hit on the New York Jets Jeff Cumberland in Week 1. http://www.airmaxpaschere.fr/air-max-98-pas-cher.html . "No difference at all," chirped U.S. roommate and linemate James van Riemsdyk. "Its still the same cranky Phil. Vapormax CS Femme . Aaron Harrison scored a 22 points for Kentucky (6-1), which has won four in a row following a Nov. 12 loss to current No. 1 Michigan State. Julius Randle overcame a scoreless first half and added his sixth double-double in as many games with 14 points and 10 rebounds. Air Max 180 Homme . LOUIS -- St. Victorias premier trainer Darren Weir has never won a race in Sydney or Perth.But he could tick off both milestones on the same day, with chances to win stakes races in three states on Saturday.Weir will saddle up Stratum Star in the Group One Kingston Town Stakes (1800m) at Ascot in Perth while Rageese is one of two stable runners in stakes races at Rosehill in Sydney.The stable is also well-represented at the Pakenham meeting in Victoria including Lord Van Percy and Auvray in the main event, the Listed $200,000 Pakenham Cup.Rageese, who runs in Saturdays Group Three Festival Stakes, was a race morning scratching from the Railway Stakes in Perth two weeks ago because of an untimely hoof issue.He was nearly right the next day, Weir told Melbourne radio station RSN927 on Thursday.It was one of those things, the timing was terrible.Unfortunately he was lame on the Saturdaay morning but nearly 100 per cent on the Sunday morning.ddddddddddddageese was flown home to Victoria a few days later and attention turned to the Festival Stakes (1500m) in Sydney.He galloped on Tuesday morning and the team at Warrnambool said he went great, Weir said.So hopefully he can run well in Sydney.Weir also has Refulgent in Saturdays Listed ATC Cup at Rosehill.Stratum Star is already a Group One winner of the 2015 Sir Rupert Clarke Stakes and headed west after a last-start second in the Sandown Stakes.Im really happy with the horse, Weir said.The barrier draw (1) is good so he gets his chance.Lord Van Percy has had three runs back from two years off the scene and hsa the Pakenham Cup and the Bagot Handicap on January 1 as targets. 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