| Quarterfinals | 1 | 2 | |||
| 8 Petra Kvitova | 6 | 6 | |||
| 15 Ashleigh Barty | 1 | 4 | |||
| Winner: Petra Kvitova | |||||
| Quarterfinals | 1 | 2 | |||
| 4 Naomi Osaka | 6 | 6 | |||
| 6 Elina Svitolina | 4 | 1 | |||
| Winner: Naomi Osaka | |||||
| Quarterfinals | 1 | 2 | 3 | ||
| 7 Karolina Pliskova | 6 | 4 | 7 | ||
| 16 Serena Williams | 4 | 6 | 5 | ||
| Winner: Karolina Pliskova | |||||
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