Miyazato has won four times this season and has alternately held the top spot in the world rankings with Jiyai Shin and Cristie Kerr.
Even though no tournament was played on the LPGA Tour last week, Kerr moved past Shin into the No. 1 spot this week and Miyazato advanced to No. 2.
Shin opened the tournament with a 3-under 69 and Kerr shot a 70. Michelle Wie settled for an even-par 72.
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