2017 Western & Southern Open – Women's Singles
was the defending champion, but lost in the semifinals to Garbiñe Muguruza.
Muguruza went on to win the title, defeating Simona Halep in the final, 6–1, 6–0. By losing the final, Halep failed to take advantage of her third opportunity in 2017 to take over the WTA No. 1 singles ranking when the top ranking was only one more match win away.Seeds
The top eight seeds received a bye into the second round.Draw
Finals
Top Half
Section 1
Section 2
Section 3
Section 4
Qualifying
Seeds
Qualifiers
- Natalia Vikhlyantseva
Draw
First Qualifier
Second Qualifier
Third Qualifier
Fifth Qualifier
Sixth Qualifier
Eleventh Qualifier