Australia’s Marcus Both fired a stunning five-under par 67 to clinch the $300,000 Johnnie Walker Cambodian Open title on Sunday, leaving two-round leader Craig Smith on tied sixth spot.

Both, who started the final round on the 10th spot ended the tournament with a 9-under aggregate 279, or merely a shot ahead of second placer Saaban Hussin at the Phokeethra Country Club.

Smith, who took the lead in the second and third rounds, struggled with six bogeys to end the final round with four-over par and a tournament total of six-under 282.