As an amateur, Miyazato won the 2004 Japan Amateur Women's Championship at the age of 14, and was the youngest player to win the event. In the
2006 Asian Games, she won silver medals in the individual and team competitions. Miyazato turned professional in December 2008, after finishing in a tie for 12th in the LPGA Final
Qualifying Tournament, a finish that gave her exempt status on the LPGA Tour. The medalist was
Stacy Lewis, with
Michelle Wie in a tie for seventh. 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. 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. In
2011, Miyazato held the 36-hole lead at the
U.S. Women's Open and finished fifth. She had three other top-10s during the season, and won nearly $600,000. Despite a slow start,
2012 was Miyazato's best season. After missing three successive cuts in the early spring, she lost in the first round of the
Sybase Match Play Championship, and did not have a top twenty finish through May. Miyazato rebounded the next week in early June with a tie for third at the
ShopRite LPGA Classic in Atlantic City. The following week, she tied for second at the
LPGA Championship, two strokes behind winner
Shanshan Feng. At her next start at the
Walmart NW Arkansas Championship, Miyazato again tied for second. After two additional top ten finishes at the
U.S. Women's Open and
Jamie Farr Toledo Classic, For the season, she earned more than $1 million and had nine top-10 finishes. In October 2013, Miyazato won her second Japan Women's Open title. With a
birdie on the last hole of the tournament, she defeated Erika Kikuchi and Miki Saiki by one stroke. Miyazato made less than half of her 2012 earnings during the
2013 LPGA Tour season, with a pair of top-10s. Her earnings on the LPGA dipped to about $105,000 in the
2014 season, before climbing back over $500,000
in 2015. Almost $200,000 of her 2015 total came at the Walmart NW Arkansas Championship, where she posted a second-place finish. During the
2016 season, Miyazato's earnings dropped to under $300,000, putting her in 68th place on the LPGA money list. In
2017, she played in 10 LPGA tournaments, missing the cut in eight of them. Miyazato ended the year outside the top 150 in season earnings. In Miyazato's only LPGA appearance of
2019, at the
Toto Japan Classic, she tied for 69th. Although both are from
Okinawa, she is not related to former LPGA Tour player
Ai Miyazato. ==Professional wins (3)==