Updated

Philadelphia, PA (SportsNetwork.com) - Teresa Lu claimed her first LPGA Tour title on Sunday and that helped her move up nine spots in this week's women's world rankings.

Lu moved from 65 to 56 in the new rankings.

There was little movement inside the top 20. Inbee Park maintained the top spot ahead of Suzann Pettersen and Stacy Lewis.

Lydia Ko and So Yeon Ryu exchanged places with Ko inching back to No. 4. Na Yeon Choi held steady in sixth and was trailed again by Shanshan Feng, Karrie Webb. I.K. Kim and Catriona Matthew.

The next five players also remained the same with Paula Creamer, Cristie Kerr, Jiyai Shin, Lexi Thompson and Ai Miyazato standing firm from 11th to 15th.

Angela Stanford and Amy Yang both improved one spot to 16 and 17 respectively as Hee Young Park tumbled two spots to No. 18. Beatriz Recari and Lizette Salas closed out the top 20 again this week.