Lydia Ko became the youngest ever LPGA Tour winner on record . The 15-year - old is the first American to win on the Tour since JoAnne Russell in 1999 . , I just wanted to make the cut . New Zealander 's non - professional status means she missed out on $ 300,000 prize money . South Korean - born Ko plans to remain amateur and attend college in the U.S .
Lydia Ko became the youngest ever LPGA Tour winner on record . The 15-year - old is the first American to win on the Tour since JoAnne Russell in 1999 . New Zealander 's non - professional status means she missed out on $ 300,000 prize money . South Korean - born Ko plans to remain amateur and attend college in the U.S .