ARDMORE, Pa. — No one could catch Phil Mickelson or Billy Horschel as the second round wrapped up early Saturday at the U.S. Open, where sunny skies helped dry muddy Merion Golf Club.
Ian Poulter tried to join them but had a bad lie in a bunker at No. 16 and his approach rolled off the back edge of the green at the 18th. The two bogeys sank him from even par to 2 over after his round of 71.
Once everyone finished, Mickelson and Horschel remained the only players under par, at 1-under 139 at the halfway point of the championship.
"I'm three off the lead in the U.S. Open," Poulter said. "And that's the difference of one hole. You can make birdie and someone can make double. I'm right in position and right there where I want to be. It's going to be a fun weekend."
The cut line was 8 over, saving both defending champion Webb Simpson (5 over) and Masters champion Adam Scott (7 over). Third-round play was scheduled to start at 12:15 p.m., with threesomes teeing off at Nos. 1 and 11 in a tournament that fell behind schedule when storms moved through the Philadelphia area on Thursday.
Tiger Woods was tied for 13th at 3 over, still in the hunt as long as he can deal with the pain from a troublesome left elbow — as well as Merion's wicked rough and flummoxing greens that more than compensate for shorter-than-usual yardage for a U.S. Open.
"It's hard with the wind and the pin locations," Woods said after his second-round 70. "They're really tough. ... We didn't think they were going to be as severe as they are."
The top of the leaderboard was a study in contrast. Mickelson has won four majors. Horschel has won once on the PGA Tour, and that was less than two months ago.
Mickelson displayed his usual take-a-chance flair Friday. His round of 72 was the full package of par saves and makeable birdie putts that all went awry — until he finally sank one from 20 feet at the 18th, the hardest hole on the course, to tie him with Horschel seconds after the horn sounded to suspend play for the day.
"On 18, when you don't really expect to get one, I put the ball in a good spot and was able to roll one in," Mickelson said.
Horschel's path was much more straight-forward. He merely put the ball on the green in regulation 18 times out of 18, a stellar achievement for a regular tour event, much less a major championship. His 3-under 67 was the best round of the day.
"I wasn't in the zone, I was just focused on what I tried to do," said Horschel, who missed the cut in his only previous U.S. Open appearance, as a teenager in 2006. "I didn't know I hit every green until I walked off 18. It's a cool thing."