Badminton World Championships 2006 at Madrid (spa) Women: Singles September 18-24: Quarterfinals: Petra Overzier (ger) * - Jiang Yanjiao (chn) 21-18 14-21 21-14 Xie Xingfang (chn) * - Hongyan Pi (fra) 21-17 21-10 Huaiwen Xu (ger) * - Petya Nedeltcheva (bul) 21-14 17-21 21-16 Zhang Ning (chn) * - Tracey Hallam (eng) 20-22 21-10 21-10 Semifinals: Xie Xingfang (chn) * - Huaiwen Xu (ger) 21-12 21-10 Zhang Ning (chn) * - Petra Overzier (ger) 21-19 21-11 Final: Xie Xingfang (chn) * - Zhang Ning (chn) 21-16 2114