| Australia (4) |
|---|
| Barty, Ashleigh | | Gavrilova, Daria | | Kasatkina, Daria | | Stosur, Samantha |
| | Belarus (3) |
|---|
| Azarenka, Victoria | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
| | Belgium (4) |
|---|
| Flipkens, Kirsten | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Brasil (1) |
|---|
| Haddad Maia, Beatriz |
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| Canada (1) |
|---|
| Bouchard, Eugenie |
| | China (3) |
|---|
| Duan, Ying-Ying | | Wang, Qiang | | Zhang, Shuai |
| | Croatia (2) |
|---|
| Martic, Petra | | Vekic, Donna |
| | Czech Republic (6) |
|---|
| Kvitova, Petra | | Pliskova, Karolina | | Pliskova, Kristyna | | Siniakova, Katerina | | Strycova, Barbora | | Vondrousova, Marketa |
|
| Denmark (1) |
|---|
| Wozniacki, Caroline |
| | Estonia (2) |
|---|
| Kanepi, Kaia | | Kontaveit, Anett |
| | France (4) |
|---|
| Cornet, Alizé | | Garcia, Caroline | | Mladenovic, Kristina | | Parmentier, Pauline |
| | Germany (5) |
|---|
| Barthel, Mona | | Goerges, Julia | | Kerber, Angelique | | Maria, Tatjana | | Witthoeft, Carina |
|
| | | Japan (2) |
|---|
| Nara, Kurumi | | Osaka, Naomi |
| | Kazakhstan (2) |
|---|
| Diyas, Zarina | | Putintseva, Yulia |
|
| Latvia (2) |
|---|
| Ostapenko, Jelena | | Sevastova, Anastasija |
| | Netherlands (1) |
|---|
| Bertens, Kiki |
| | Paraguay (1) |
|---|
| Cepede Royg, Veronica |
| | Poland (2) |
|---|
| Linette, Magda | | Radwanska, Agnieszka |
|
| Puerto Rico (1) |
|---|
| Puig, Monica |
| | Romania (5) |
|---|
| Begu, Irina-Camelia | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Halep, Simona | | Niculescu, Monica |
| | Russia (8) |
|---|
| Kuznetsova, Svetlana | | Makarova, Ekaterina | | Pavlyuchenkova, Anastasia | | Sharapova, Maria | | Vesnina, Elena | | Vikhlyantseva, Natalia | | Zhuk, Sofya | | Zvonareva, Vera |
| | Serbia (1) |
|---|
| Krunic, Aleksandra |
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| Slovakia (2) |
|---|
| Cibulkova, Dominika | | Rybarikova, Magdalena |
| | Spain (4) |
|---|
| Arruabarrena, Lara | | Muguruza, Garbiñe | | Sorribes Tormo, Sara | | Suárez Navarro, Carla |
| | Swiss (2) |
|---|
| Bacsinszky, Timea | | Bencic, Belinda |
| |
| Ukraine (2) |
|---|
| Svitolina, Elina | | Tsurenko, Lesia |
| | United Kingdom (2) |
|---|
| Konta, Johanna | | Watson, Heather |
| | United States (20) |
|---|
| Anisimova, Amanda | | Bellis, CiCi | | Brady, Jennifer | | Brengle, Madison | | Collins, Danielle | | Davis, Lauren | | Day, Kayla | | Dolehide, Caroline | | Kenin, Sofia | | Keys, Madison | | Lepchenko, Varvara | | Liu, Claire | | McHale, Christina | | Rogers, Shelby | | Stephens, Sloane | | Townsend, Taylor | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Serena | | Williams, Venus |
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