SEOUL, Jan 17, 2009 (AFP) - Results from the quarterfinals of the Korea Open Super Series being held in the South Korea capital Saturday (x denotes seeds):

Men's Singles:

Lee Chong Wei (MASx1) bt Przemyslaw Wacha (POLx7) 21-17, 21-12

Peter Hoeg Gade (DENx3) bt Simon Santoso (INAx8) WD

Women's Singles:

Pi Hongyan (FRAx4) bt Zhou Mi (HKGx1) 23-21, 19-21, 21-12

Wang Chen (HKGx3) bt Tine Rasmussen (DENx2) 21-10, 21-11

Men's Doubles:

Mathias Boe/Carsten Mogensen (DENx4) bt Fang Chieh Min/Lee Sheng Mu (TPE) 21-16, 21-14

Jung Jae-Sung/Lee Yong-Dae (KORx2) bt Lars Paaske/Jonas Rasmussen (DENx3) 21-11, 21-7

Women's Doubles:

Chien Yu Chin/Chieng Wen Hsing (TPEx1) bt Gao Ling/Wei Yili (CHNx5) 21-15, 21-17

Lee Kyung-Won/Lee Hyo-Jung (KORx2) bt Yang Wei/Zhang Jiewen (CHNx3) 21-16, 18-21, 21-10

Mixed Doubles:

Songphon Anugritayawon/Kunchala Voravichitchaikul (THAx4) bt Valiyaveetil Diju/Jwala Gutta (INA) 21-19, 22-20

Lee Yong-Dae/Lee Hyo-Jung (KORx2) bt Yohan Hadikusumo Wiratama/Chau Hoi Wah (HKG) 21-11, 21-11 (yahoo.news)