| Australia (3) |
|---|
| Barty, Ashleigh | | Gavrilova, Daria | | Stosur, Samantha |
| | Bielorussia (3) |
|---|
| Azarenka, Victoria | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
| | Belgio (4) |
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| Flipkens, Kirsten | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Brasile (1) |
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| Haddad Maia, Beatriz |
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| Canada (1) |
|---|
| Bouchard, Eugenie |
| | Cina (3) |
|---|
| Duan, Ying-Ying | | Wang, Qiang | | Zhang, Shuai |
| | Croazia (2) |
|---|
| Martic, Petra | | Vekic, Donna |
| | Repubblica Ceca (6) |
|---|
| Kvitova, Petra | | Pliskova, Karolina | | Pliskova, Kristyna | | Siniakova, Katerina | | Strycova, Barbora | | Vondrousova, Marketa |
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| Danimarca (1) |
|---|
| Wozniacki, Caroline |
| | Estonia (2) |
|---|
| Kanepi, Kaia | | Kontaveit, Anett |
| | Francia (4) |
|---|
| Cornet, Alizé | | Garcia, Caroline | | Mladenovic, Kristina | | Parmentier, Pauline |
| | Germania (5) |
|---|
| Barthel, Mona | | Goerges, Julia | | Kerber, Angelique | | Maria, Tatjana | | Witthoeft, Carina |
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| | | Giappone (2) |
|---|
| Nara, Kurumi | | Osaka, Naomi |
| | Kazakistan (2) |
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| Diyas, Zarina | | Putintseva, Yulia |
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| Lettonia (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
| | | Paraguay (1) |
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| Cepede Royg, Veronica |
| | Polonia (2) |
|---|
| Linette, Magda | | Radwanska, Agnieszka |
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| Porto Rico (1) |
|---|
| Puig, Monica |
| | Romania (5) |
|---|
| Begu, Irina-Camelia | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Halep, Simona | | Niculescu, Monica |
| | Russia (9) |
|---|
| Kasatkina, Daria | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Pavlyuchenkova, Anastasia | | Sharapova, Maria | | Vesnina, Elena | | Vikhlyantseva, Natalia | | Zhuk, Sofya | | Zvonareva, Vera |
| | Serbia (1) |
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| Krunic, Aleksandra |
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| Slovacchia (2) |
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| Cibulkova, Dominika | | Rybarikova, Magdalena |
| | Spagna (4) |
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| Arruabarrena, Lara | | Muguruza, Garbiñe | | Sorribes Tormo, Sara | | Suárez Navarro, Carla |
| | Svizzera (2) |
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| Bacsinszky, Timea | | Bencic, Belinda |
| |
| Ucraina (2) |
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| Svitolina, Elina | | Tsurenko, Lesia |
| | Regno Unito (2) |
|---|
| Konta, Johanna | | Watson, Heather |
| | Stati Uniti (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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