Yani Tseng's successful title defense Sunday at the Walmart NW Arkansas Championship was her fifth of the year and in the process, extended her advantage atop the world rankings.
Suzann Pettersen remained in second, followed by Cristie Kerr, Na Yeon Choi, Jiyai Shin, Sun Ju Ahn and Ai Miyazato. Paula Creamer and Brittany Lincicome both moved up one to eighth and ninth, respectively. I.K. Kim fell two to No. 10.