SCOTT Jamieson will go in search of the biggest title of his career when he takes a one-shot lead into the final round of the Nedbank Golf Challenge hosted by Gary Player on Sunday.

The Scotsman won the weather-shortened Nelson Mandela Championship in the 2013 European Tour season but taking home a cheque for just under £940,000 and a first Rolex Series trophy in Sun City would dwarf that achievement and boost his chances of making Thomas Bjorn's Ryder Cup team next year.

A bogey-free 67 moved the 33-year-old to eight under and a narrow advantage over France's Victor Dubuisson, who signed for a 71 after holding a two-shot overnight lead.

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Jamieson was a picture of consistency as he made birdies on the second, fourth, ninth, 13th and 14th.

"It's exciting," he told the European Tour's official website. "I'm in a good position, tomorrow will be a new challenge. Still an awful long way to go but if I can obviously do what I did today, I'll be in with a good shout.

"It would be the biggest moment of my career, I'll be well aware of that tomorrow. I've got to see if I can step up to the challenge."

Two-time major championship winner Martin Kaymer was at five under alongside home favourite Branden Grace, with another South African in Haydn Porteous and Italian Francesco Molinari two shots further back.

Englishman Tommy Fleetwood would take the Race to Dubai title with a win on Sunday but he was six shots off the lead after a third-round 67.

Meanwhile, Scotland's Michele Thomson posted an eight-under-par 64 on Saturday to move into a three-shot lead after the second round of the Hero Women's Indian Open.

The 29-year-old from Aberdeen, who joined the police after quitting professional golf in 2009 before returning to the sport in 2013, collected eight birdies to smash the course record by three strokes at DLG Golf & Country Club's Gary Player-designed Black Knight Course.

"Performance overall was really good - eight birdies, no bogeys," she told the Ladies European Tour. "Irons were solid - that was the main reason for scoring that low – and then I had 26 putts, which obviously helped.

"I didn't really do much different, just stuck to my strategy and make sure I did everything, went through my routine. I played solid (on Friday, en route to an opening 70), just didn't hole any putts."

French duo Camille Chevalier (69) and Celine Boutier (66), Australia's Sarah Kemp (66) and India's Vani Kapoor (68) were tied for second on seven under, with England's Meghan MacLaren (70) and Wales' Lydia Hall (67) a further two shots back in the 54-hole event.