Madison Keys was the defending champion but lost in the second round to Ons Jabeur. Victoria Azarenka won the title via walkover, after Naomi Osaka withdrew from the final with a hamstring injury. This was Azarenka's first singles title since Miami in March 2016, and her first since giving birth to her son Leo in December 2016. Seeds The top eight seeds received a bye into the second round. Draw Finals Top half Section 1 Section 2 Bottom half Section 3 Section 4 Qualifying Seeds Qualifiers Lucky loser Daria Kasatkina Qualifying draw First qualifier Second qualifier Third qualifier Fourth qualifier Fifth qualifier Sixth qualifier Seventh qualifier Eighth qualifier Ninth qualifier Tenth qualifier Eleventh qualifier Twelfth qualifier External links Main Draw Qualifying Draw Women's Singles