Radwańska was forced out of the Pan Pacific Open tournament in Tokyo due to a bout of flu. At the Wuhan Open, she scored her fifth career win over Wimbledon semifinalist Magdaléna Rybáriková in the first round. She defeated Julia Görges in the second round, claiming her 500th main draw victory on the WTA. Radwańska avenged her straight-set loss to Görges earlier this year, at the Western & Southern Open in Cincinnati, and increased her head-to-head record against the German to four wins and two losses. A quarterfinalist in Wuhan last year, Radwańska lost to the eventual finalist, Ashleigh Barty in the third round, after the Australian dispatched No. 5 seed Johanna Konta. Radwańska began her title defense at the China Open with two straight-sets victories over Carina Witthöft and Zhang Shuai before falling to Daria Kasatkina in a third-round three set meeting. Radwańska ended her season ranked 28th, her worst since 2005, following a second round defeat in Hong Kong to Samantha Stosur.