| Argentina (1) |
|---|
| Podoroska, Nadia |
| | Australia (2) |
|---|
| Barty, Ashleigh | | Tomljanovic, Ajla |
| | Bielorussia (1) |
|---|
| Sabalenka, Aryna |
| |
| Cina (3) |
|---|
| Wang, Qiang | | Zhang, Shuai | | Zheng, Saisai |
| | | Repubblica Ceca (5) |
|---|
| Krejcikova, Barbora | | Kvitova, Petra | | Muchova, Karolina | | Pliskova, Karolina | | Vondrousova, Marketa |
| | Francia (3) |
|---|
| Cornet, Alizé | | Garcia, Caroline | | Mladenovic, Kristina |
|
| Germania (2) |
|---|
| Kerber, Angelique | | Siegemund, Laura |
| | | Italia (3) |
|---|
| Cocciaretto, Elisabetta | | Giorgi, Camila | | Trevisan, Martina |
| |
| Kazakistan (2) |
|---|
| Putintseva, Yulia | | Shvedova, Yaroslava |
| | Lettonia (2) |
|---|
| Ostapenko, Jelena | | Sevastova, Anastasija |
| | Polonia (2) |
|---|
| Linette, Magda | | Swiatek, Iga |
| | Romania (2) |
|---|
| Halep, Simona | | Tig, Patricia Maria |
|
| Russia (5) |
|---|
| Alexandrova, Ekaterina | | Kasatkina, Daria | | Kudermetova, Veronika | | Pavlyuchenkova, Anastasia | | Zvonareva, Vera |
| | Slovenia (2) |
|---|
| Hercog, Polona | | Zidansek, Tamara |
| | Spagna (2) |
|---|
| Muguruza, Garbiñe | | Sorribes Tormo, Sara |
| | Svizzera (2) |
|---|
| Bencic, Belinda | | Teichmann, Jil |
|
| Ucraina (2) |
|---|
| Kostyuk, Marta | | Svitolina, Elina |
| | Regno Unito (1) |
|---|
| Konta, Johanna |
| | Stati Uniti (12) |
|---|
| Anisimova, Amanda | | Brady, Jennifer | | Gauff, Coco | | Kenin, Sofia | | Keys, Madison | | McHale, Christina | | Pegula, Jessica | | Pera, Bernarda | | Riske, Alison | | Rogers, Shelby | | Stephens, Sloane | | Williams, Serena |
|