| Argentina (8) |
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| Andreozzi, Guido | | Bagnis, Facundo | | Berlocq, Carlos | | Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego |
| | Austrália (12) |
|---|
| Barty, Ashleigh | | Cabrera, Lizette | | De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Gavrilova, Daria | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | Stosur, Samantha | | Thompson, Jordan | | Tomljanovic, Ajla |
| | Áustria (2) |
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| Novak, Dennis | | Thiem, Dominic |
| | Bielorrússia (4) |
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| Azarenka, Victoria | | Lapko, Vera | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
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| Bélgica (6) |
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| Bemelmans, Ruben | | Flipkens, Kirsten | | Goffin, David | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Bósnia Herzegovina (2) |
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| Basic, Mirza | | Dzumhur, Damir |
| | Bulgária (1) |
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| Dimitrov, Grigor |
| | Canadá (6) |
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| Auger-Aliassime, Felix | | Bouchard, Eugenie | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Shapovalov, Denis |
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| | China (3) |
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| Wang, Qiang | | Wang, Yafan | | Zhang, Shuai |
| | Croácia (4) |
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| Cilic, Marin | | Coric, Borna | | Martic, Petra | | Vekic, Donna |
| | Chipre (1) |
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| Baghdatis, Marcos |
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| República Checa (10) |
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| Bouzkova, Marie | | Kvitova, Petra | | Muchova, Karolina | | Pliskova, Karolina | | Pliskova, Kristyna | | Safarova, Lucie | | Siniakova, Katerina | | Strycova, Barbora | | Vesely, Jiri | | Vondrousova, Marketa |
| | Dinamarca (1) |
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| Wozniacki, Caroline |
| | Estónia (2) |
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| Kanepi, Kaia | | Kontaveit, Anett |
| | França (17) |
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| Benneteau, Julien | | Chardy, Jeremy | | Cornet, Alizé | | Garcia, Caroline | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Humbert, Ugo | | Mahut, Nicolas | | Mannarino, Adrian | | Mladenovic, Kristina | | Monfils, Gael | | Moutet, Corentin | | Paire, Benoit | | Parmentier, Pauline | | Pouille, Lucas | | Simon, Gilles | | Tan, Harmony |
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| Geórgia (1) |
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| Basilashvili, Nikoloz |
| | Alemanha (16) |
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| Barthel, Mona | | Goerges, Julia | | Gojowczyk, Peter | | Hanfmann, Yannick | | Kerber, Angelique | | Kohlschreiber, Philipp | | Maden, Yannick | | Maria, Tatjana | | Marterer, Maximilian | | Mayer, Florian | | Petkovic, Andrea | | Siegemund, Laura | | Struff, Jan-Lennard | | Witthoeft, Carina | | Zverev, Alexander | | Zverev, Mischa |
| | Grécia (2) |
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| Sakkari, Maria | | Tsitsipas, Stefano |
| | Hungria (2) |
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| Babos, Timea | | Fucsovics, Marton |
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| | | Itália (9) |
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| Berrettini, Matteo | | Cecchinato, Marco | | Fognini, Fabio | | Gaio, Federico | | Giorgi, Camila | | Lorenzi, Paolo | | Seppi, Andreas | | Sonego, Lorenzo | | Travaglia, Stefano |
| | Japão (6) |
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| Daniel, Taro | | Nara, Kurumi | | Nishikori, Kei | | Nishioka, Yoshihito | | Osaka, Naomi | | Sugita, Yuichi |
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| Cazaquistão (3) |
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| Diyas, Zarina | | Kukushkin, Mikhail | | Putintseva, Yulia |
| | Letónia (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
| | Liechtenstein (1) |
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| Deichmann, Kathinka Von |
| | Lituânia (1) |
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| Berankis, Ricardas |
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| Luxemburgo (1) |
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| Muller, Gilles |
| | | Holanda (3) |
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| Bertens, Kiki | | Haase, Robin | | Rus, Arantxa |
| |
| Polónia (3) |
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| Hurkacz, Hubert | | Linette, Magda | | Radwanska, Agnieszka |
| | | Porto Rico (1) |
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| Puig, Monica |
| | Roménia (7) |
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| Begu, Irina-Camelia | | Bogdan, Ana | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Copil, Marius | | Halep, Simona | | Niculescu, Monica |
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| Rússia (17) |
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| Alexandrova, Ekaterina | | Blinkova, Anna | | Donskoy, Evgeny | | Gasparyan, Margarita | | Kalinskaya, Anna | | Kasatkina, Daria | | Khachanov, Karen | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Rodina, Evgeniya | | Rublev, Andrey | | Sharapova, Maria | | Vikhlyantseva, Natalia | | Youzhny, Mikhail | | Zvonareva, Vera |
| | Sérvia (6) |
|---|
| Djere, Laslo | | Djokovic, Novak | | Krajinovic, Filip | | Krunic, Aleksandra | | Lajovic, Dusan | | Troicki, Viktor |
| | Eslováquia (5) |
|---|
| Cibulkova, Dominika | | Kuzmova, Viktoria | | Lacko, Lukas | | Rybarikova, Magdalena | | Schmiedlova, Anna Karolina |
| | Eslovénia (4) |
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| Bedene, Aljaz | | Hercog, Polona | | Jakupovic, Dalila | | Zidansek, Tamara |
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| África do Sul (2) |
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| Anderson, Kevin | | Harris, Lloyd |
| | Coreia do Sul (1) |
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| Chung, Hyeon |
| | Espanha (16) |
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| Arruabarrena, Lara | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Muguruza, Garbiñe | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Sorribes Tormo, Sara | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Suécia (2) |
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| Larsson, Johanna | | Peterson, Rebecca |
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| Suíça (7) |
|---|
| Bacsinszky, Timea | | Bencic, Belinda | | Federer, Roger | | Schnyder, Patty | | Teichmann, Jil | | Voegele, Stefanie | | Wawrinka, Stan |
| | | Tunísia (2) |
|---|
| Jabeur, Ons | | Jaziri, Malek |
| | Ucrânia (6) |
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| Bondarenko, Kateryna | | Kalinina, Anhelina | | Kozlova, Kateryna | | Svitolina, Elina | | Tsurenko, Lesia | | Yastremska, Dayana |
|
| Reino Unido (5) |
|---|
| Edmund, Kyle | | Konta, Johanna | | Murray, Andy | | Norrie, Cameron | | Watson, Heather |
| | Estados Unidos (41) |
|---|
| Altamirano, Collin | | Anisimova, Amanda | | Brady, Jennifer | | Brengle, Madison | | Brooksby, Jenson | | Collins, Danielle | | Di Lorenzo, Francesca | | Dolehide, Caroline | | Fritz, Taylor | | Gibbs, Nicole | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kenin, Sofia | | Keys, Madison | | King, Vania | | Klahn, Bradley | | Krueger, Mitchell | | Kudla, Denis | | Lao, Danielle | | Liu, Claire | | McDonald, Mackenzie | | McHale, Christina | | Mmoh, Michael | | Muhammad, Asia | | Osuigwe, Whitney | | Pera, Bernarda | | Querrey, Sam | | Riske, Alison | | Rubin, Noah | | Sandgren, Tennys | | Smyczek, Tim | | Sock, Jack | | Stephens, Sloane | | Tiafoe, Frances | | Townsend, Taylor | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Serena | | Williams, Venus | | Young, Donald |
| | Uzbequistão (1) |
|---|
| Istomin, Denis |
|