Top-ranked Lee Westwood shot a 1-under 71 Saturday to lead by five strokes after the third round of the Nedbank Golf Challenge.
His closest challenger and fellow Englishman Ross Fisher finished with a 73 on a hot day, made tougher by a swirling wind around the Gary Player Country Club.
Westwood mixed two bogeys with three birdies to reach a 13-under total of 203. Fisher was tied for second with South Africa's Tim Clark, who shot a 68, one of two sub-70 rounds Saturday in the 12-player invitational tournament.
Miguel Angel Jimenez of Spain (71) was six strokes behind the leader. Anders Hansen of Denmark (68) is another stroke back with Ernie Els (71) and Padraig Harrington — who had a second straight 72 to drop further off the pace after a first-round 66.
Fisher trailed Westwood by three shots overnight, but had two bogeys and a double bogey in four holes from No. 14.
"Three ahead, now five ahead, I'll take that," Westwood said. "It was tricky out there today. To come out five shots ahead is a big bonus."
Westwood didn't come close to his second-round 64, but has in his sights a second tournament win of 2010.
"I've made three bogeys in 54 holes, so that's pretty good going," he said. It's a nice position to be in, but it's by no means over. It can change pretty quickly."
