Charl Schwartzel knows he’s going to need a repeat of his brilliant Augusta National winning effort if he’s to deny Lee Westwood victory in the Thailand Golf Championship in Bangkok.

Schwartzel carded a third round 66 for a 15-under par tally and move within four strokes of World No. 2 Westwood.

Westwood led the Masters champion by nine strokes after the first day and then 11 on day two on the Amata Spring Country Club course located about 50 kilometres outside of the Thai capital.

But the 38-year old Westwood let ship his stranglehold of the event with a third day 73 that included three birdies but also four bogeys, and the only dropped shots over his three rounds, to end at 19-under par.

Lee Westwood on route to a fourth bogey of his round at the 17th hole floating green. (Photo - Thanks to Asian Tour)

“After a 60 and 64, you’re probably going to be disappointed with the third round but I’ve still got a four shot lead into the last round and it’s a good position to be in,” said Westwood.

“So it’s a better position to be leading than chasing.  Hopefully, at some point on the last day I can stretch my lead so that people will have to put their foot down and that’s where you can make mistakes on this golf course.”

Schwartzel is looking to capture his third title this year after also winning the European Tour’s Joburg Open at the commencement to 2011.

However it was his superb Augusta performance that Schwartzel will draw inspiration from over the last round in Thailand.

The Springbok golfer went into the last day at eight under par and trailing four strokes behind Rory McIlroy, and while McIlroy imploded with an 80, Schwartzel created Masters history in birding his closing four holes and win by two.

“I’ve won about two or three tournaments where I was four shots behind, so I’ve done it before,” said the South African.

“I don’t know what the secret is but I will just play my own game.  We all know Lee is a good player, so it’s out of my hands.”