New Straits Times Â» Sport [b]BADMINTON/Korea Open:[/b] Sairul ends Malaysia's campaign K.M. Boopathy Jan 29: MALAYSIA'S campaign in the US$250,000 (RM950,000) Korea Open Badminton Championships came to an end when Sairul Amar Ayub crashed out in the quarter-finals in Incheon yesterday. Sairul, a former national player, could not contain favourite Peter Gade Christensen of Denmark and fell to a 15-11, 15-4 defeat in just 35 minutes. Christensen will now meet local favourite Park Sung Hwan in the semi-finals. The 20-year-old Korean defeated Ng Wei of Hong Kong 15-13, 11-15, 15-10 in the last eight. Second seed Kenneth Jonassen, the 2003 champion, also made it to the last four after beating Shoji Sato of Japan 15-1, 17-14. The Dane plays Athens Olympics semi-finalist Boonsak Ponsana of Thailand today. Boonsak defeated Korean junior Ahn Hyun Suk 15-8, 15-3 in the quarter-finals. RESULTS - (All q-finals) Men's singles: Peter Gade Christensen (Den) bt Sairul Amar Ayub (Mas) 15-11, 15-4; Kenneth Jonassen (Den) bt Shoji Sato (Jpn) 15-1, 17-14; Boonsak Ponsana (Tha) bt Ahn Hyun Suk (S Kor) 15-8, 15-3; Park Sung Hwan (S Kor) bt Ng Wei (HK) 15-13, 11-15, 15-10. Doubles: Jung Jae Sung-Lee Jae Jin (S Kor) bt Mathias Boe-Carsten Mogensen (Den) 15-11, 15-6; Candra Wijaya-Sigit Budiarto (Ina) bt Albertus Susanto-Liu Kok Wa (HK) 15-5, 15-8; Guo Zhendong-Xie Zhongbo (Chn) bt Thomas Laybourn-Peter Steffensen (Den) 15-11, 15-7; Jens Eriksen-Martin Lundgaard Hansen (Den) bt Shuichi Sakamoto-Shintaro Ikeda (Jpn) 15-7, 15-3. Women's singles: Jun Jae Youn (S Kor) bt Wang Rong (Chn) 11-6, 13-12; Pi Hongyan (Fra) bt Eriko Hirose (Jpn) 6-11, 11-8, 11-4; Wang Chen (HK) bt Seo Yoon Hee (S Kor) 11-2, 11-7.