 In her first season as a professional at age 19, she had fourth-place finishes at the LPGA Corning Classic and Wegmans LPGA tournaments in 2009.Miyazato's first professional victory came at the Japan Women's Open Golf Championship in October 2010.That year, she also had five top-10 finishes on the LPGA Tour, including two third-place results, and was 17th on the money list with more than $600,000 in earnings.