South Korean rookie Baek Kyu-jung has jumped 20 notches in the Rolex Women's World Golf Rankings, entering the top 15 with her maiden LPGA victory in Incheon on Sunday.
 
The ranking, announced on Monday, placed the 19-year-old at 13th with 4.50 points.
 
The jump in ranking comes as Baek won the LPGA KEB-HanaBank Championship on Sunday, beating Brittany Lincicome of the United States and compatriot Chun In-gee.
 
Stacy Lewis of the United States has maintained the No.1 spot over runner-up Park In-bee. Korean New Zealander Lydia Ko came in third, followed by Suzanne Pettersen of Norway and Feng Shanshan of China.