| Australia (1) |
|---|
| Stosur, Samantha |
| | | Croatia (2) |
|---|
| Konjuh, Ana | | Lucic-Baroni, Mirjana |
| | Czech Republic (2) |
|---|
| Pliskova, Karolina | | Strycova, Barbora |
|
| Estonia (1) |
|---|
| Kontaveit, Anett |
| | France (1) |
|---|
| Mladenovic, Kristina |
| | Germany (3) |
|---|
| Kerber, Angelique | | Korpatsch, Tamara | | Siegemund, Laura |
| |
| | Latvia (2) |
|---|
| Ostapenko, Jelena | | Sevastova, Anastasija |
| | Netherlands (1) |
|---|
| Bertens, Kiki |
| | Poland (1) |
|---|
| Radwanska, Agnieszka |
|
| | Russia (5) |
|---|
| Kasatkina, Daria | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Sharapova, Maria | | Vesnina, Elena |
| | Spain (2) |
|---|
| Muguruza, Garbiñe | | Suárez Navarro, Carla |
| | United Kingdom (1) |
|---|
| Konta, Johanna |
|
| United States (2) |
|---|
| Brady, Jennifer | | Vandeweghe, Coco |
|