Sun Young Yoo birdied the first playoff hole Sunday to defeat I.K. Kim and win the Kraft Nabisco Championship.
That victory helped Yoo soar 22 places to No. 15 in the latest world rankings.
World No. 1 Yani Tseng missed the playoff by a single stroke, but easily remained the top-ranked player in the world. She was again followed by Na Yeon Choi, Suzann Pettersen and Cristie Kerr.
Kim jumped seven spots to No. 5 and that bumped Sun Ju Ahn down one to sixth. Ai Miyazato remained No. 7, Jiyai Shin tumbled a pair to eighth and last year's Kraft champion Stacy Lewis held steady in ninth.
Paula Creamer dropped two to 10th, while Shanshan Feng and Brittany Lincicome were down a notch apiece to 11 and 12. Amy Yang and Angela Stanford exchanged places with Yang up to No. 13.
Following Yoo, Ji-Hee Lee and Chie Arimura both slid one to 16 and 17. Catriona Matthew and Karrie Webb were 18 and 19 again this week, while Morgan Pressel tumbled to three to 20th.