The 35-year-old is at the top of the leaderboard alongside India's S.S.P. Chawrasia at 10-under par.

They lead local amateur Natthaphat Harnchokchaiskul by one shot, with Thailand's Phachara Khongwatmai and American John Catlin a further two shots back in a tie for fourth.

Victory in the $US300,000 event on Sunday would be Martin's first on the Asian Tour and the biggest win of his professional career.

His previous best result this year on the Asian Tour is tied for 20^th at the World Super 6 in Perth.

He's had three previous top-10 finishes on the Asian Tour in 2017 and 2018.

Martin's first three rounds of 67, 68 and 68 have been highlighted by some superb putting.

He is averaging 25.33 putts per round this week and so far has hit 78.58 per cent of fairways.

"The course kind of suits my game,'' Martin said after his third round three-under par 68.

"I'm not a long hitter, but I think you just got to be on the fairway because that rough can be quite brutal.

"Trying to judge it, and then with the wind, like you get one out of the rough downwind, it can go for miles.

"The greens are perfect. You just got to give yourself opportunities out there.

"Putting is probably one of my strengths, so just give myself opportunities and hopefully hole some putts. I have been playing a lot lately and I think they help my game which has been trending the right way.

"The first tee shot will be key for me tomorrow (Sunday).

"I would love to be an Asian Tour winner. Especially in Thailand, I love coming back here. I love playing here at the Thai Country Club, too.

"It was my first time here last year and I was excited to be back this year."

Martin's final round starts at 3.05pm (AEDT).

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