(CNN) -- South Africa veteran Ernie Els fired a three-under-par 69 to lurk just two shots behind leader Marcus Fraser at the weather-affected Ballantine's Championship in South Korea on Saturday.
Former world No. 1 Els moved up to a tie for fifth with home hope Ted Oh and Fraser's fellow Australian Brett Rumford on seven-under 135 ahead of Sunday's third and final round.
The European Tour event at Pinx Golf Club on Jeju Island has been reduced to 54 holes to heavy fog on Thursday which prevented 65 of the field from teeing off until the second day.
Fraser, who led after the opening round, shot 70 to overtake defending champion Thongchai Jaidee and Tano Goya, who set the second-round clubhouse lead on Friday.
Thailand's Jaidee and Argentine Goya were joined on eight-under by Irishman Gareth Maybin, who carded his second successive 68.
The 31-year-old Fraser, seeking his second European Tour title to to follow up his 2003 Russian Open win, was happy to take a one-shot lead after a difficult day.
"I played very well but just didn't make a couple of putts at the start of the round, but made a couple of birdies at the end of the round," Fraser, who had a day off on Friday, told the tour's official Web site.
"I felt like I played as good as I did on Thursday but it was just very tough conditions. It was just so gusty. It would drop and come back and it was difficult judging shots into the greens. But I managed to hit a lot of greens and made a few putts when I had to.
"It's a bit weird knowing it's only a 54-hole tournament, but I will just give it my best shot and keep playing well and hope the outcome works in my favor."
Three-time major champion Els, who has won twice on the U.S. PGA Tour this year, carded birdies at two of his first three holes and then more at 14 and 18 to bounce back from a bogey at 13.
Rumford and Oh both signed for 70s, having started the day tied for fourth. Oh, ranked 306th in the world, eagled the par-five fourth hole but then carded three bogeys to cancel out as many birdies.
American Anthony Kim, who won the Houston Open before finishing third at the Masters this month, dropped back to a tie for 24th seven shots behind Fraser after an erratic round of 74 featuring four birdies and three double-bogeys.
Meanwhile, the second round of the PGA Tour's Zurich Open of New Orleans has spilled over into the tournament's third day after heavy rain and lightning at the TPC Louisiana course.
Europeans Alex Cejka, Brian Davis and Greg Owen shared the clubhouse lead with veteran American Lee Janzen on seven-under 137 as only 47 players finished their second rounds on Friday.
First-round leader Jason Bohn had yet to begin his second round, having opened with 65.
Davis, who conceded a penalty during the playoff at the Verizon Heritage event last weekend to hand Jim Furyk victory, carded 66 while fellow Englishman Owen shot 70.
German Cejka fired six birdies in his 67, while the 45-year-old Janzen -- a two-time U.S. Open winner -- was flawless in his 66.