Korean-New Zealander Lydia Ko moved up to world No. 4 in the professional women's golf rankings on Monday after claiming her first win as a pro at the KLPGA Tour Swinging Skirts World Ladies Masters in Taiwan on Sunday.
Park In-bee maintained the world No. 1 spot for the 35th week, while Suzann Pettersen of Norway placed second and Stacy Lewis of the U.S. was fourth.
Ryu So-yeon ranked fifth.