Philadelphia, PA (SportsNetwork.com) - Following her dramatic win on Saturday in Hawaii, Sei Young Kim improved three spots to No. 16 in this week's world rankings.

After driving it into the water on the final hole of regulation, Kim chipped in for par to force a playoff. On the first extra hole, she holed out for eagle and the win. Kim beat Inbee Park for the title.

Lydia Ko remained the No. 1 player. Park improved to No. 2 despite her playoff loss. That pushed Stacy Lewis down to No. 3 this week. Hyo-Joo Kim, Shanshan Feng and ANA Inspiration champ Brittany Lincicome remained fourth through sixth.

So Yeon Ryu and Suzann Pettersen exchanges places with Ryu up to seventh. Michelle Wie and Lexi Thompson held on to the ninth and 10th spots. Cristie Kerr improved one to 11th and that bumped Amy Yang down a notch to 12th.

Karrie Webb moved up a spot to 13 and Mirim Lee dipped one to No. 14. Anna Nordqvist held steady at 15 and was followed by Sei Young Kim. Azahara Munoz, Na Yeon Choi and Q Baek slipped one apiece. Jessica Korda rounded out the top-20 again this week.