Louis Oosthuizen is one shot off a five-way tie for the lead after the first day of the weather-disrupted Ballantine's Championship in South Korea.
Poor visibility and rain in the morning led to play being suspended and with over two hours of play lost, all 78 players from the afternoon session will have to return at 7.30am on Friday morning to resume their first round.
France's Jean-Baptiste Gonnet, Australian's Kieran Pratt, Sweden's Johan Edfors, England's Matthew Baldwin and Korea's Kim Gi-whan share the lead after posting five-under 67s at the Blackstone Golf Club.
Oosthuizen can still catch them though after finishing the day at four-under through 16.
The 2010 Open Champion and world number seven looked set to be the clear leader at one point after he started his round with four straight birdies.
The South African got up and down from a greenside bunker on the par-five first and then hit his approach to the second to five feet, before holing from 15 and 20ft respectively on the third and fourth to race to four-under.
He added two more at six and eight to turn in six-under and lead the field by one but stalled on the back nine with bogeys at 10 and 12.
"I got off to a great start and was hitting it really well early on," Oosthuizen said. "But then on the back nine the wind came in and the weather got worse, and I miscued two shots and paid the price.
"But overall I haven't hit it that well for a long time, so it was very encouraging. I was striking it very nicely on the range this morning and then managed to take it onto the course with me this afternoon. So I'm very happy."
Ireland's Peter Lawrie and Korean Jung Hwan Lee are both in the clubhouse on four-under while England's Tommy Fleetwood is on the same mark with a hole to play.
Another Englishman, David Howell, is in a big group on three-under while defending champion Bernd Wiesberger of Austria returned a one-under 71 after dropping two shots when returning from the weather delay.
It was a day to forget for Paul Casey however as his struggles continued with a four-over 76.