Results from the quarter-finals of the BWF World Championships in Guangzhou, China, on Friday:
Men's singles:
Lee Chong Wei (MASx1) bt Tommy Sugiarto (INDx8) 21-6, 21-9
Lin Dan (CHN) bt Chen Long (CHNx2) 21-13, 22-20
Du Pengyu (CHNx3) bt Kashyap Parupalli (INDx13) 16-21, 22-20, 21-15
Nguyen Tien Minh (VIEx7) bt Jan O Jorgensen (DENx9) 21-8, 17-21, 22-20
Women's singles:
Li Xuerui (CHNx1) bt Tai Tzu-ying (TPEx6) 27-25, 21-13
Bae Yeon-Ju (KORx13) bt Saina Nehwal (INDx3) 23-21, 21-9
P.V Sindhu (INDx10) bt Wang Shixian (CHNx7) 21-18, 21-17
Ratchanok Intanon (THAx4) bt Carolina Marin (ESP) 21-18, 20-22, 21-15
Men's doubles:
Kim Ki-Jung/Kim Sa-Rang (KORx5) bt Kien Keat Koo/Boon Heong Tan (MASx2) 21-15, 21-16
Cai Yun/Fu Haifeng (CHNx8) bt Hiroyuki Endo/Kenichi Hayakawa (JPNx4) 21-13, 22-20
Mohammad Ahsan/Hendra Setiawan (INAx6) bt Lee Sheng-mu/Tsai Chia-hsin (TPEx13) 21-14, 21-18
Mathias Boe/Carsten Mogensen (DENx3) bt Angga Pratama/Ryan Agung Saputra (INAx10) 21-13, 11-21, 21-17
Women's doubles:
Wang Xiaoli/Yu Yang (CHNx1) bt Jung Kyung-Eun/Kim Ha-Na (KORx11) 21-11, 21-19
Tian Qing/Zhao Yunlei (CHNx5) bt Ma Jin/Tang Jinhua (CHNx2) 21-17, 21-17
Eom Hye-Won/Jang Ye-Na (KORx8) bt Pia Zebadiah Bernadeth/Rizki Amelia Pradipta (INAx9) 22-20, 21-15
Christinna Pedersen/Kamilla Rytter Juhl (DENx4) bt Bao Yixin/Zhong Qianxin (CHNx7) 21-17, 13-21, 21-18
Mixed doubles:
Xu Chen/Ma Jin (CHNx1) bt Robert Mateusiak/Nadiezda Zieba (POLx8) 21-4, 21-4
Zhang Nan/Zhao Yunlei (CHNx2) bt Yoo Yeon-Seong and Jang Ye-Na (KORx11) 21-12, 22-20
Tontowi Ahmad/Liliyana Natsir (INAx3) bt Kenichi Hayakawa/Misaki Matsutomo (JPN) 21-10, 17-21, 21-19
Shin Baek-Choel/Eom Hye-Won bt Muhammad Rijal/Debby Susanto (INAx6) 21-9, 21-15
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