| Australia (4) |
|---|
| Barty, Ashleigh | | Gavrilova, Daria | | Stosur, Samantha | | Tomljanovic, Ajla |
| | Bielorussia (4) |
|---|
| Azarenka, Victoria | | Lapko, Vera | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
| | Belgio (4) |
|---|
| Flipkens, Kirsten | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Canada (1) |
|---|
| Andreescu, Bianca |
|
| Cina (6) |
|---|
| Wang, Qiang | | Wang, Xinyu | | Wang, Xiyu | | Wang, Yafan | | Zhang, Shuai | | Zheng, Saisai |
| | Croazia (2) |
|---|
| Martic, Petra | | Vekic, Donna |
| | Repubblica Ceca (7) |
|---|
| Kvitova, Petra | | Muchova, Karolina | | Pliskova, Karolina | | Pliskova, Kristyna | | Siniakova, Katerina | | Strycova, Barbora | | Vondrousova, Marketa |
| | Danimarca (1) |
|---|
| Wozniacki, Caroline |
|
| Estonia (2) |
|---|
| Kanepi, Kaia | | Kontaveit, Anett |
| | Francia (4) |
|---|
| Cornet, Alizé | | Garcia, Caroline | | Mladenovic, Kristina | | Parmentier, Pauline |
| | Germania (6) |
|---|
| Friedsam, Anna-Lena | | Goerges, Julia | | Kerber, Angelique | | Maria, Tatjana | | Petkovic, Andrea | | Siegemund, Laura |
| |
| | Giappone (4) |
|---|
| Doi, Misaki | | Hibino, Nao | | Osaka, Mari | | Osaka, Naomi |
| | Kazakistan (1) |
|---|
| Putintseva, Yulia |
| | Lettonia (2) |
|---|
| Ostapenko, Jelena | | Sevastova, Anastasija |
|
| | Porto Rico (1) |
|---|
| Puig, Monica |
| | Romania (4) |
|---|
| Begu, Irina-Camelia | | Buzarnescu, Mihaela | | Halep, Simona | | Niculescu, Monica |
| | Russia (6) |
|---|
| Alexandrova, Ekaterina | | Gasparyan, Margarita | | Kasatkina, Daria | | Pavlyuchenkova, Anastasia | | Rodina, Evgeniya | | Vikhlyantseva, Natalia |
|
| Serbia (2) |
|---|
| Danilovic, Olga | | Krunic, Aleksandra |
| | Slovacchia (4) |
|---|
| Cibulkova, Dominika | | Kuzmova, Viktoria | | Rybarikova, Magdalena | | Schmiedlova, Anna Karolina |
| | Slovenia (3) |
|---|
| Hercog, Polona | | Jakupovic, Dalila | | Zidansek, Tamara |
| | Spagna (3) |
|---|
| Muguruza, Garbiñe | | Sorribes Tormo, Sara | | Suárez Navarro, Carla |
|
| Svezia (2) |
|---|
| Larsson, Johanna | | Peterson, Rebecca |
| | Svizzera (2) |
|---|
| Bencic, Belinda | | Golubic, Viktorija |
| | |
| Ucraina (3) |
|---|
| Svitolina, Elina | | Tsurenko, Lesia | | Yastremska, Dayana |
| | Regno Unito (1) |
|---|
| Konta, Johanna |
| | Stati Uniti (14) |
|---|
| Anisimova, Amanda | | Collins, Danielle | | Gauff, Cori | | Kenin, Sofia | | Keys, Madison | | McNally, Caty | | Osuigwe, Whitney | | Pegula, Jessica | | Riske, Alison | | Stephens, Sloane | | Townsend, Taylor | | Vickery, Sachia | | Williams, Serena | | Williams, Venus |
|