2019 Western & Southern Open – Women's Singles
was the defending champion, but lost in the second round to Venus Williams.
Madison Keys won the title, defeating Svetlana Kuznetsova in the final, 7–5, 7–6.
Naomi Osaka retained the WTA no. 1 singles ranking after the tournament. Ashleigh Barty and Karolína Plíšková were also in contention for the top ranking at the start of the tournament.
This tournament marked Maria Sharapova's final WTA tour victory before her retirement; she defeated Alison Riske in the first round before losing to Barty in the second round.Seeds
The top eight seeds received a bye into the second round.Draw
Finals
Section 2
Bottom Half
Section 3
Section 4
Seeds
Qualifiers
Qualifying draw
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
