Radwańska began the year at the WTA Auckland Open where as the fourth seed, she defeated Beatriz Haddad Maia and Taylor Townsend but lost to qualifier Sachia Vickery in the quarterfinal. She then competed at the Apia International Sydney, overpowering the defending champion Johanna Konta and Catherine Bellis to advance to the quarterfinal, where she lost to Camila Giorgi. This loss caused Radwańska to fall out of the top 30 for the first time since 2007 since she was unable to defend her finalist points at the tournament.