With this victory the Japanese became the only winner in 2010, since last week she took away the season opener: Honda PTT LPGA Thailand.
Miyazato became the first player since 1966 to win the first two official events of the LPGA.
On Thursday she was already in the top 10, but it was until Saturday when she managed to tie Juli Inkster, who was the current leader and close on becoming the oldest LPGA winner.
Nevertheless, the youth prevailed and with 69-71-69-69 rounds Miyazato buried Inkster's hopes, along with Crisitie Kerr's, who was runner-up (-8); Song-Hee Kim, Jiyai Shin, Yani Tseng y Suzann Pettersen's, all of them tied for 3rd (-7).
Inkster crumbled on Sunday after shooting 2 over with bogeys on 1, 2, 6, 10, 15 and 18, compared with birdies on 5, 9, 11 and 16, which led her to finish 9th.
But the biggest disappointment of all was Lorena Ochoa; world number one lead the first round after shooting 68, but on Friday she melt down with a 79, her second worst round as a LPGA member (in 2004 she shot 81 in the Wegmans LPGA).
After these past couple of weeks, the LPGA won't comeback to Asia until October; nevertheless it was pretty much clear that the far East players are in command of the most competitive women's tour on earth.
Meanwhile, Ai Miyazato finally showed why she's such a buzz in her country; do not hesitate, do not doubt: she will be a tough contender this year and she could even fight for the Player of the Year Award.