Park topped the ranking released Monday with a score of 12.12, ahead of 10.39 scored by South Korea-born New Zealander Lydia Ko, who missed the cut. Ko had been the world's No. 1 since early February.
Stacy Lewis of the United States and Kim Hyo-joo, also of South Korea, retained their No. 3 and No. 4 spots, respectively.
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