However , she could not claim the US $ 300,000 first-place check on Sunday . Ko became youngest-ever winner in LPGA history at Canadian Women 's Open . Ko , 15 , became LPGA tour 's fifth -ever amateur champion -- its first since 1969 . Ko also won U.S. Women 's Amateur in Ohio and Ohio open at Australian LPGA 1969 . Ko plans to maintain amateur status for time being .
Ko became youngest-ever winner in LPGA history at Canadian Women 's Open . Ko , 15 , became LPGA tour 's fifth -ever amateur champion -- its first since 1969 . Ko also won U.S. Women 's Amateur in Ohio and Ohio open at Australian LPGA 1969 . Ko plans to maintain amateur status for time being .