Angelique Kerber and Simona Halep both lost Thursday in Beijing. On Friday, Petra Kvitova meets Madison Keys.
Petra Kvitova saved 17 of 22 break points on her way to the 6-7 (10), 7-5, 6-4 win over newly crowned world No 1 and US Open champion Angelique Kerber, who committed eight double faults.
Angelique Kerber opened her Beijing campaign with a win. Venus Williams, though, wasn't as fortunate.
Elina Svitolina has beaten a No. 1-ranked player for the second time this season, ousting U.S. Open champion Angelique Kerber from the China Open 6-3, 7-5 on Thursday to reach the quarterfinals
NICK HARRIS AT WIMBLEDON: Angelique Kerber gave German sports fans a second semi-final to relish on Thursday by beating Simona Halep to set up a last-four match against Venus Williams.