Philadelphia, PA (SportsNetwork.com) - Su-Hyun Oh earned her first professional victory on Sunday and that helped her skyrocket up the world rankings.

Oh, the former No. 1 ranked amateur in the world, jumped 110 spots to No. 136 thanks to her 3-stroke win at the RACV Ladies Masters.

Lydia Ko held on to the top spot in the rankings and she was again followed by Inbee Park, Stacy Lewis, Shanshan Feng, Suzann Pettersen and Michelle Wie.

For the third week in a row, So Yeon Ryu and Hyo-Joo Kim exchanged places. Ryu inched up one to seventh and Kim dipped to eighth. This week's defending Australian Open champion Karrie Webb and Lexi Thompson were ninth and 10th again this week.

Kyu Jung Baek, Na Yeon Choi, Anna Nordqvist and Azahara Munoz were 11th to 14th again. Brittany Lincicome jumped three places to No. 15 and that pushed Cristie Kerr, Sun Ju Ahn and Mi Rim Lee down one notch apiece.

Jessica Korda climbed one to 19th and that pushed Ha-Na Jang down to 20th this week.