Quarter-finals results from the Yonex Sunrise Hong Kong Open 2012 badminton tournament on Friday. (x denotes seeding):
Men's singles
Chen Long (CHN x2) bt Sho Sasaki (JPN x5) 21-16, 21-12
Tommy Sugiarto (IND) bt Marc Zwiebler (GER) 21-17, 19-21, 21-17
Lee Chong Wei (MAS x1) bt Nguyen Tien Minh (VIE x8) 21-18, 21-19
Kenichi Tago (JPN x6) bt Mohamad Arif Abdul Latif (MAS) 21-12, 21-15
Women's singles
Juliane Schenk (GER x5) bt Porntip Buranaprasertsuk (THA) 21-16, 21-16
Wang Yihan (CHN x1) bt Pai Hsiao Ma (TPE) 20-22, 21-11, 21-16
Wang Lin (CHN) bt Adrianti Firdasari (IND) 21-12, 21-19
Men's doubles
Liu Xiaolong/Qiu Zihan (CHN/CHN) bt Hoon Thien How/Tan Wee Kiong (MAS/MAS) 25-27, 23-21, 21-13
Cai Yun/Fu Haifeng (CHN/CHN x2) bt Mohammad Ahsan/Hendra Setiawan (IND/IND) 21-17, 21-15
Lee Sheng Mu/Tsai Chia Hsin (TPE/TPE) bt Hiroyuki Endo/Kenichi Hayakawa (JPN/JPN x5) 14-21, 21-16, 21-16
Women's doubles
Tian Qing/Zhao Yunlei (CHN/CHN x1) bt Misaki Matsutomo/Ayaka Takahashi (JPN/JPN x5) 21-11, 21-18
Shizuka Matsuo/Mami Naito (JPN/JPN x4) bt Duanganong Aroonkesorn/Kunchala Voravichitchaikul (THA/THA) 21-12, 21-13
Wang Xiaoli/Yu Yang (CHN/CHN x2) bt Eom Hye Won/Jang Ye Na (KOR/KOR x6) 21-10, 21-19
Bao Yixin/Tang Jinhua (CHN/CHN x7) bt Goh Liu Ying/Lim Yin Loo (MAS/MAS) 18-21, 21-9, 21-13
Mixed doubles
Joachim Fischer Nielsen/Christinna Pedersen (DEN/DEN x4) bt Fran Kurniawan/Shendy Puspa Irawati (IND/IND x6) 23-21, 21-8
Xu Chen/Ma Jin (CHN/CHN x1) bt Danny Bawa Chrisnanta/Vanessa Neo Yu Yan (IND/IND x7) 21-17, 21-13
Zhang Nan/Zhao Yunlei (CHN/CHN x2) bt Riky Widianto/Puspita Richi Dili (IND/IND) 21-18, 21-12
Chan Peng Soon/Goh Liu Ying (MAS/MAS x3) bt Yoo Yeon Seong/Jang Ye Na (KOR/KOR) 23-25, 21-16, 21-15
