South Korea's Ko Jin-young fired nine birdies in a sensational nine-under par 63 on Sunday to win the LPGA Tour Championship.
Ko's second straight victory in the season finale at Tiburon Golf Club in Naples, Florida, was her fifth title of the year.
She also took home Player of the Year, after swapping the number one ranking all season with American Nelly Korda, who finished the tournament in a tie for fifth.
Japan's Nasa Hataoka came in second.
The 26-year-old Ko now has 12 LPGA titles.
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