SINGAPORE (AP) — Thailand's Chapchai Nirat shot a 6-under 65 on Sunday in the completion of the third round of the Singapore Open to take a three-stroke lead.

Nirat had a 10-under 203 total on the Sentosa Golf Club course. Lam Chih Bing, seeking to become the first Singaporean to win the $5 million tournament, was second.

American Phil Mickelson finished up his third round Sunday with a 66, putting him at 6 under. South African star Ernie Els also was four strokes back.