South Korean Sung Hyun Park has come from behind to pip West Australian Minjee Lee, who's had to settle for second in the HSBC Women's World Championship in Singapore.
Park produced a sizzling final round of eight-under-par 64 in windy conditions to clinch a two-stroke victory over Lee.
Lee, who had started in second place on Sunday behind Thailand's World No.1 Ariya Jutanugarn, had taken a two-stroke lead when she made her third birdie of the round at the par-5 8th.
The 22-year-old made another birdie on the par-4 12th but Park was continuing her charge and took a share of the lead with her seventh birdie of the round on 13 and took a two-shot lead on 16 with her final birdie while Lee made a bogey on 14.
Lee needed to make an eagle on the final hole to force an unlikely playoff but her second shot landed about 30 feet from the pin.
The 25-year-old Park from Seoul opened her final round with three-successive birdies and made two more at 6 and 7 but a bogey on the par-5 8th had her turning at four under for the round.
RIGHT: Park shot eight-under 64 to defeat Lee by two shots in Singapore. PHOTO: Andrew Redington/Getty Images.
She made a further four birdies on the back nine and tapped in for par from less than three feet to sign for a total of 15-under 273 on the Tanjong Course at Sentosa Golf Club.
"I'm really happy with my play today. I am really happy because I used to have rough starts to my year and I think that I will now feel really comfortable for the rest of the season," Park said through an interpreter.
Lee, who was also the runner-up last week in Thailand, shot 69 to finish on 13-under 275 as she was overtaken by Park, who had started the final round in eighth place.
Spain's Azahara Munoz and Korea's Jin Young Ko both shot closing scores of 69 to finish tied for third, two strokes further back, with Hyo Joo Kim (70) and American Amy Olson (70) tied for fifth on 10-under 278.
Jutanugarn had a one-shot lead heading into the final round but a double bogey at the par-3 4th dropped her down the leaderboard and she was unable to recover.
She made a double-bogey 7 on 13 and another bogey on 14 ended her hopes of winning her first event in Asia as she closed with a 75 to finish in equal eighth with eight-under 280.