Radwanska, the 2011 champion, produced two sets of near-flawless tennis to wrap up a 6-1, 6-2 victory and a book a meeting with Elina Svitolina.
? TennisTV (@TennisTV) October 7, 2016
Shvedova, who defeated Alizé Cornet in their rain-delayed third-round encounter earlier in the day, made a bright enough start, capitalizing on a couple of errors from Radwanska to claim an early break. However, from this point on it was one-way traffic, the Pole soaking up Shvedova's best blows to race through the rest of the set.
Radwanska's defense was equally watertight in the second set - she would finish with just nine unforced errors - rattling off the final four games to take her place in a fifth semifinal in the Chinese capital.
Svitolina's progress was not quite so straightforward, recovering from a slow start to defeat Daria Gavrilova. Having overturned an early deficit, Svitolina experienced an almighty struggle to close out the opening set. In the end she required seven set points, going on to close out a 7-6(3), 6-1 winner after an hour and 45 minutes.