Lydia Ko failed to fire in the final round of the latest LPGA Tour event in Malaysia overnight.

The world number one carded an even par 71 to finish at eight-under in a seven way tie for 12th, nine shots behind the winner, China's Shanshan Feng.

Ko made a double bogey on 15 and a bogey on 18 to derail any chance of a top five finish. Malaysia's Sargunan Suntharaj caddied for the New Zealander in her first tournament since firing Jason Hamilton.

"It was a lot of fun working with Guna," Ko said. "I think a lot of people came out to not only watch me play but see him in action, too. It was really good, and obviously all the best to him when he goes back to his player."

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Hamilton immediately teamed with Ha Na Jang, a three-time winner this year who also finished at eight-under. The South Korean player shot a 72. She birdied four of the first six, bogeyed five of the next six, and parred the last six.