Kim sat in the dining room at Sentosa Golf Club and munched on some late afternoon snacks while watching Green take a one-stroke lead to the 17th. But Green three-putted the par-three hole to leave Kim tied for the lead. Then the Australian bogeyed the 18th after she missed the green and a comeback putt for par after a poor chip.
It was Kim's fourth LPGA title, including a major at the 2014 Evian Championship.
Green's 69 left her in second place. Three players were tied for third — Patty Tavatanakit shot 65 and third-round leader Xiyu Lin and world No2 Inbee Park had 70s to finish two strokes behind.
"I thought everybody had the opportunity to win. I didn't make any mistakes on the front nine, and as I went to the back nine, I felt I might be able to win it," said Kim.
- With AP