Phil Mickelson and Billy Horschel are tied for the lead at the US Open on one under par after the second round was finally completed.
The pair made it through 36 holes on Friday but a large number of players were less lucky at the Merion course in Pennsylvania and had to resume their second rounds on Saturday.
Over four hours' play was lost to bad weather on Thursday and despite far better conditions on Friday, the field had not finished before darkness fell.
English pair Luke Donald and Justin Rose are a shot off the lead along with American Steve Stricker, while three-time winner Tiger Woods is on three-over, along with Rory McIlroy.
But Ian Poulter suffered a disappointing finish to his second round after he returned to play the final four holes.
The Ryder Cup hero was just one shot off the lead and facing a birdie putt on the 15th green when play was suspended due to darkness on Friday evening, after four and a quarter hours' play had been lost to bad weather on Thursday.
Poulter was forced to settle for a par when play resumed on Saturday morning and then bogeyed the 16th.
He found a fairway bunker off the tee and failed to get up and down from just short of the green.
Poulter recovered to sink a long putt on the 17th, where his tee shot to the par three had spun back off the front of the green, to help save par there.
He then bogeyed the 18th to complete a second consecutive 71 that leaves him on two over par but Poulter remained upbeat as he continued to keep in touch with the leaders.
"Albeit it was with two bogeys in the last three holes to finish round two but I'm right there," he said.
"I'm right in position and let's look forward to what round three and four have.
"I'm three off the lead in the US Open 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."