Following are results of women's doubles quarterfinals in the badminton matches at the Beijing Olympic Games on Monday:

Maeda Miyuki/Suetsuna Satoko, Japan, bt Yang Wei/Zhang Jiewen, China, 8-21, 23-21, 21-14

Lee Hyojung/Lee Kyungwon, South Korea, bt Jiang Yanmei/Li Yujia, Singapore, 21-15, 21-12

Wei Yili/Zhang Yawen, China, bt Cheng Wen-Hsing/Chien Yu-Chin, Chinese Taipei, 21-14, 21-18

Du Jing/Yu Yang, China, bt Ogura Kumiko/Shiota Reiko, Japan, 21-8, 21-5.

(Xinhua News Agency August 12, 2008)