American Lucas Glover will take a one stroke lead into day three of The US Open Championship at Bethpage Black - with Sweden's Peter Hanson well placed among the chasing pack.
After the first round had reached a belated conclusion following Thursday's early abandonment, half of the 156 strong field returned to the course on Friday evening to begin their second rounds, with Canadian Mike Weir leading the field on six under par.
Weir carded a stunning 64 which included eight birdies and, were it not for a double bogey on the sixth, his 15th hole, he could have set a new US Open record of 62.
However, the 2003 Masters Tournament champion found life tougher in the second round and bogeys at the fifth and ninth sent him into a tie for third at four under.
Glover, who recorded a 69 in round one, capitalised on Weir's slip in clinical fashion - making five birdies and eight pars before bad light drew a halt to proceedings shortly before 8:30pm (1:30am BST).
He holds a one shot lead over fellow countryman Ricky Barnes, who followed his opening 67 with birdies at the 11th and 16th, his second and seventh holes.
Hanson is alongside Weir on four under, the 31 year old making two birdies and two bogeys in 11 second round holes after earlier moving into contention with a fine 66.
After his excellent first round, which contained six birdies, Hanson revealed: "I was very lucky yesterday that the rain came in because something tweaked in my neck on Wednesday and I couldn’t have played."
Fortunately, the delay allowed Hanson to receive treatment on his injury before his tournament got underway and after maintaining his challenge in the second round, he added: "It’s pleasing to have kept it going having been in the spotlight.
I still can’t fully turn the shoulder because of my neck injury so I am kind of chipping the driver out there and hitting it pretty short which can make some of the long holes very tough, but at the same time I am keeping it on the fairway and hitting a lot of greens.
"Tomorrow, the forecast is not good which is a real shame because the job they did to get the course playing again was unbelievable."
Todd Hamilton is a shot behind Hanson on three under, while Denmark's Søren Hansen, England's Ross Fisher and Australia's Adam Scott all made progress in their second rounds to join the group on two under.
Hansen, who played alongside fellow Scandinavian Hanson, said: "I think both Peter and I are helping each other a lot out there and we are both playing well.
"I am looking forward to tomorrow because I really feel like this golf course suits me a lot. It really fits my eye and I can’t wait to get back out there."
World number two Phil Mickelson remains in contention at one under, alongside Northern Ireland's Graeme McDowell - who played superbly to shoot 69 in the trickier conditions and is scheduled to begin his second round on Saturday.
England's Ian Poulter and Swede Johan Edfors have also yet to start their respective second rounds and remain on level par.
Spain's Sergio Garcia is on one over after 11 holes of his second round, the same score as Rory McIlroy, who ended his first round 72 with three successive birdies before recording three further birdies and two bogeys on his return to the course.
On the subject of his stunning first round finish, McIlroy said: "The three birdies in a row certainly helped – I really needed it because the round was looking like it could be 76 or 77."
Charl Schwartzel made a stunning start to his second round, birdieing five of the opening six holes to leap from seven over to two over.
However, a bogey at the seventh stunted the South African's progress and he ended the day on five over for the tournament, with six holes of his second round still to play.
The high-profile grouping of Tiger Woods, Angel Cabrera and Padraig Harrington will be among those to begin their second rounds on Saturday morning.
Woods and Cabrera will resume on four over, while Harrington is two shots further back on six over.