World No. 1 Lydia Ko and Inbee Park still remained number 1 and 2 for another week.
Stacy Lewis, Shanshan Feng and Suzann Pettersen also stayed put at Nos. 3-5, respectively.
With Ryu up two places, Michelle Wie and Hyo-Joo Kim have dropped one place to number 7 and 8.
There was no change to the rest of the top-20.
Karrie Webb, Lexi Thompson, Amy Yang, Q Baek, Anna Nordqvist, Azahara Munoz, Na Yeon Choi, Mi Rim Lee, Brittany Lincicome, Jessica Korda, Cristie Kerr and Sun Ju Ahn were Nos. 9-20 once again.