England's Nick Dougherty crept clear of Colin Montgomerie and Thomas Bjorn to lead the Singapore Masters by two shots after the third round.
GB unless stated
-13 Nick Dougherty
-11 Colin Montgomerie, Thomas Bjorn (Den)
-10 Maarten Lafeber (Ned), Peter Hedblom (Swe)
-8 Soren Hansen (Den)
-4 Graeme McDowell
-3 Lee Westwood
-1 David Howell
Dougherty, 22, fired a four-under 68 to edge to 13 under with defending champion Montgomerie (69) and Denmark's Bjorn (67) in a share of second.
Sweden's Peter Hedblom and Dutchman Maarten Lafeber were locked on 10 under with Denmark's Soren Hansen two behind.
England's Lee Westwood was three under with countryman David Howell one under.
Dougherty, a protege of England's former world number one Nick Faldo, birded his three closing holes as both Montgomerie and Bjorn bogeyed the short 17th.
The Englishman, who was tied fourth in last week's South African Open, has yet to win on the European Tour.
"I had a great time out there," said Dougherty.
"If I could think of my first chance to win a tournament, there are not many better players in Europe you would pick in your group than Colin or Thomas.
"Jack Nicklaus said on the first three days you play the course and on the last day you play the man but I am not sure I'll go for that approach.
"I've had chances to win before. I was leading in Sweden but there are always circumstances where you learn from your mistakes."
Montgomerie, 41, whose victory in Singapore last year was his only win of the season, amassed six birdies and three bogeys.
"I came from four strokes back last year to win here and there were two players four ahead of me and there is one now and he's just two ahead," he said.
"So I am in a much better position than I was in last year and we'll just see what develops."
The 33-year old Bjorn, seeking an eighth European Tour success, lifted himself into contention with a chip-in for eagle at the 15th.
He also shot seven birdies, a bogey and a sixth-hole double bogey.
"It had everything but there was a lot of good stuff in there," he said.
"I'm not playing my best but I'm getting it around the golf course as well as I can.
"The important thing today was not to play yourself out of the golf tournament but to be in with a chance tomorrow."