Updated

Philadelphia, PA (SportsNetwork.com) - Amy Yang topped Hee Kyung Seo with a birdie in the first playoff hole at the LPGA KEB - HanaBank Championship on Sunday and that moved her inside the top 20 of this week's women's world rankings.

Yang's first career LPGA title jumped her nine places in the rankings to 18th.

The top three players in the rankings remained the same, with Inbee Park maintaining the top spot ahead of Suzann Pettersen and Stacy Lewis. Lydia Ko and So Yeon Ryu swapped places to sit in fourth and fifth, respectively.

Na Yeon Choi, Shanshan Feng, Karrie Webb, Catriona Matthew and I.K. Kim stayed put from sixth through 10th.

The next seven players also held their places as Paula Creamer, Cristie Kerr, Jiyai Shin, Lexi Thompson, Ai Miyazato, Angela Stanford and Hee Young Park maintained their positions from 11th through 17th.

Yang's jump to No. 18 caused Lizette Salas to drop a spot to 19th, and Carolina Hedwall again rounded out the top 20.