Austrian Bernd Wiesberger will take a five-shot lead into the final round of the Ballantine's Championship after carding a second straight seven-under-par 65 at Blackstone Golf Club in Icheon, South Korea.
The 26-year-old, who opened with a respectable level-par 72 on a blustery first day, was one shot clear of Australian Marcus Fraser at the tournament's midway point and extended that advantage with another impressive display on Saturday.
For the second day running he collected seven birdies en route to a flawless round - equalling his own course record and advancing to 14 under as a result.
Fraser, who won this title on Jeju Island in 2010, remained his nearest challenger on nine under after a creditable 69 despite blotting his copybook by bogeying the par-five 15th.
England's Oliver Fisher (67) was a further shot back on eight under alongside Chile's Felipe Aguilar (68), with Ireland's Paul McGinley (65) and Spain's Miguel Angel Jimenez (69) one further adrift in a tie for fifth.Wiesberger was superb all day with the putter, maintaining his lead with birdies on four and six - the former thanks to a 15-foot putt.
Further lengthy putts followed on the 10th, 12th and 13th before an amazing downhill effort from 20 feet on 14 as he surged clear with a stunning inward 31.
It all left the Vienna-born player reflecting on "another perfect day", which has put him in pole position for a maiden European Tour title.
He said: "I think that's what we call a great day at the office. It was fun out there. It was nice conditions again like yesterday, and a really nice set-up for the course. I enjoyed myself out there, made a lot of putts and that was the key to another perfect day.
"Out there on the greens I really felt like I saw the lines perfectly today and I putted the ball nicely."
Wiesberger, a two-time winner on the Challenge Tour in 2010 and twice a runner-up on the European Tour last year, added: "It feels like I'm getting into position more often, and played well when I was in those positions in the last half of the year last year. It was a good preparation the last two years, and I hope it pays off tomorrow."
Fraser accepted he had his work cut out trying to reel in Wiesberger on Sunday, and tipped the leader to take the title and go on to be a big star.
"I felt like I was playing chase out there most of the day and trying to keep up," the 33-year-old said. "Bernd is playing great - so much game and definitely a star of the European Tour to come. He's obviously a great player now but he's got big things in front of him - that's for sure.
"It reflects the way he's playing. He played great here and gives himself a chance on every hole and he's a great putter, as well.
"If I was a betting man, I would put the house on him. He's just played so well and looks very comfortable."
Collated third round scores & totals in the European Tour Ballantine's Championship, Blackstone Golf Club, Icheon, Seoul, South Korea
(Gbr & Irl unless stated, par 72):
202 Bernd Wiesberger (Aut) 72 65 65
207 Marcus Fraser (Aus) 71 67 69
208 Felipe Aguilar (Chi) 71 69 68, Oliver Fisher 71 70 67
209 Miguel Angel Jimenez (Spa) 72 68 69, Paul McGinley 71 73 65
210 Kiradech Aphibarnrat (Tha) 76 69 65, Richie Ramsay 70 72 68, Alexander Noren (Swe) 75 66 69, David Howell 73 69 68
211 Anthony Wall 73 67 71, David Oh (USA) 73 70 68, Ian Poulter 75 67 69, Victor Dubuisson (Fra) 68 75 68, Y.E. Yang (Kor) 74 71 66, Gregory Havret (Fra) 76 69 66, Thongchai Jaidee (Tha) 71 71 69
212 Paul Casey 70 72 70, Soren Kjeldsen (Den) 74 69 69, Prom Meesawat (Tha) 72 72 68, Romain Wattel (Fra) 72 73 67, Sang-moon Bae (Kor) 75 68 69, Siddikur Rahman (Ban) 75 69 68
213 Brett Rumford (Aus) 73 70 70, Ross Fisher 71 72 70, Thaworn Wiratchant (Tha) 73 70 70, George Coetzee (Rsa) 71 71 71, Graeme Storm 72 69 72
214 Jeev Milkha Singh (Ind) 72 74 68, Richard S Johnson (Swe) 73 73 68, Mikko Ilonen (Fin) 75 69 70, Shane Lowry 74 70 70, Berry Henson (USA) 74 72 68, Oscar Floren (Swe) 72 67 75
215 Adam Scott (Aus) 71 76 68, Gareth Maybin 72 76 67, Ho-sung Choi (Kor) 73 70 72, Matthew Zions (Aus) 74 71 70, Andrew Dodt (Aus) 75 71 69, Danny Willett 75 67 73, Ji-Ho Jung (Kor) 70 71 74, Jamie Donaldson 70 72 73, Peter Karmis (Rsa) 77 69 69, Anirban Lahiri (Ind) 71 73 71
216 Christian Nilsson (Swe) 74 71 71, Andrea Pavan (Ita) 72 74 70, Michael Jonzon (Swe) 76 71 69, Mark Foster 70 75 71, James Morrison 74 69 73
217 Chris Wood 74 71 72, Damien McGrane 73 71 73, Estanislao Goya (Arg) 76 70 71, Richard McEvoy 78 70 69, Scott Jamieson 76 68 73, Heung-chol Joo (Kor) 74 73 70, Marc Warren 76 72 69, Keith Horne (Rsa) 75 72 70
218 Tjaart Van Der Walt (Rsa) 75 73 70, Kyung-Tae Kim (Kor) 73 75 70, Hyun-woo Ryu (Kor) 74 73 71
219 Sung Lee (Kor) 75 71 73, Kyung-nam Kang (Kor) 76 72 71, Jin-ho Choi (Kor) 75 73 71, Tae-kyu Lee (Kor) 71 73 75
220 Ricardo Gonzalez (Arg) 75 70 75, Andrew Tschudin (Aus) 74 73 73, Pablo Martin (Spa) 80 68 72
221 Shang-hung Kao (Tpe) 72 74 75, Peter Whiteford 71 74 76, Byeong-Hun An (Kor) 73 75 73, Do-hoon Kim (Kor) 72 76 73, Digvijay Singh (Ind) 73 70 78
222 Sung-kug Park (Kor) 76 71 75
