Cincinnati Open
Quarts de finale
20.08.2021
21.08.2021
Classement mondial
| # | Nom | Points | |
|---|---|---|---|
| 1 |  | Aryna Sabalenka | 10.870 |
| 2 |  | Iga Świątek | 8.395 |
| 3 |  | Coco Gauff | 6.763 |
| 4 | | Amanda Anisimova | 6.287 |
| 5 |  | Elena Rybakina | 5.850 |
| 6 | | Jessica Pegula | 5.583 |
| 7 | | Madison Keys | 4.335 |
| 8 |  | Jasmine Paolini | 4.325 |
| 9 | | Mirra Andreeva | 4.319 |
| 10 | | Ekaterina Alexandrova | 3.375 |