Following are quarterfinal results of badminton men's singles at the Beijing Olympic Games on Thursday:

Lin Dan, China, bt Peter Hoeeg Gade, Denmark, 21-13, 21-16

Chen Jin, China, bt Hsieh Yu-Hsing, Chinese Taipei, 21-8, 21-14

Lee Hyun-il, South Korea, bt Bao Chunlai, China, 23-21, 21-11

Lee Chong Wei, Malaysia, bt Sony Dwi Kuncord, Indonesia, 21-9, 21-11.

(Xinhua News Agency August 14, 2008)