Lydia Ko moved up to world No. 4 in the professional women's golf rankings when they were updated on Monday. The 16-year-old has maintained the top spot in the amateur rankings for 127 straight weeks since April 2011
The Korean-New Zealander claimed her second CN Canadian Women's Open title last month, making her the first-ever amateur to win two U.S. LPGA Tour events.
Korea's Park In-bee kept her grip on the world No. 1 spot for the 24th week, while Norway's Suzann Pettersen was second and America's Stacy Lewis placed third. Ryu So-yeon moved up one spot to fifth while Choi Na-yeon dropped to sixth -- putting four players of Korean ethnicity in the top six.
Ko returned to New Zealand on Sept. 18 after finishing runner-up in the Evian Championship two days earlier. Ko, who is studying at Pinehurst School in Albany, said she will concentrate exclusively on her studies for the next two months. She plans to turn pro either later this year or early next year.