| Argentina (3) |
|---|
| Del Potro, Juan Martin | | Pella, Guido | | Schwartzman, Diego |
| | Australia (6) |
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| Barty, Ashleigh | | De Minaur, Alex | | Kasatkina, Daria | | Kyrgios, Nick | | Millman, John | | Tomljanovic, Ajla |
| | Austria (1) |
|---|
| Thiem, Dominic |
| | Belarus (3) |
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| Azarenka, Victoria | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
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| Belgium (2) |
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| Goffin, David | | Mertens, Elise |
| | Bulgaria (1) |
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| Dimitrov, Grigor |
| | Canada (2) |
|---|
| Auger-Aliassime, Felix | | Shapovalov, Denis |
| | China (3) |
|---|
| Wang, Qiang | | Zhang, Shuai | | Zheng, Saisai |
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| Croatia (2) |
|---|
| Cilic, Marin | | Coric, Borna |
| | Czech Republic (5) |
|---|
| Kvitova, Petra | | Pliskova, Karolina | | Siniakova, Katerina | | Strycova, Barbora | | Vondrousova, Marketa |
| | Denmark (1) |
|---|
| Wozniacki, Caroline |
| | Estonia (1) |
|---|
| Kontaveit, Anett |
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| France (10) |
|---|
| Chardy, Jeremy | | Cornet, Alizé | | Garcia, Caroline | | Gasquet, Richard | | Mladenovic, Kristina | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Germany (5) |
|---|
| Barthel, Mona | | Goerges, Julia | | Kohlschreiber, Philipp | | Struff, Jan-Lennard | | Zverev, Alexander |
| | Greece (2) |
|---|
| Sakkari, Maria | | Tsitsipas, Stefano |
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| Hungary (1) |
|---|
| Fucsovics, Marton |
| | Italy (10) |
|---|
| Basso, Andrea | | Berrettini, Matteo | | Cecchinato, Marco | | Cocciaretto, Elisabetta | | Errani, Sara | | Fognini, Fabio | | Paolini, Jasmine | | Seppi, Andreas | | Sinner, Jannik | | Sonego, Lorenzo |
| | Japan (3) |
|---|
| Nishikori, Kei | | Nishioka, Yoshihito | | Osaka, Naomi |
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| Kukushkin, Mikhail | | Putintseva, Yulia |
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| Latvia (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
| | | Netherlands (1) |
|---|
| Bertens, Kiki |
| |
| | Romania (3) |
|---|
| Begu, Irina-Camelia | | Buzarnescu, Mihaela | | Halep, Simona |
| | Russia (3) |
|---|
| Khachanov, Karen | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia |
| | Serbia (2) |
|---|
| Djere, Laslo | | Djokovic, Novak |
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| Slovakia (2) |
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| Cibulkova, Dominika | | Kuzmova, Viktoria |
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|---|
| Hercog, Polona | | Zidansek, Tamara |
| | Spain (7) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Muguruza, Garbiñe | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Sweden (1) |
|---|
| Peterson, Rebecca |
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| Swiss (3) |
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| Bencic, Belinda | | Federer, Roger | | Wawrinka, Stan |
| | | Ukraine (3) |
|---|
| Svitolina, Elina | | Tsurenko, Lesia | | Yastremska, Dayana |
| | United Kingdom (4) |
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| Edmund, Kyle | | Evans, Daniel | | Konta, Johanna | | Norrie, Cameron |
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| United States (11) |
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| Anisimova, Amanda | | Collins, Danielle | | Fritz, Taylor | | Johnson, Steve | | Kenin, Sofia | | Keys, Madison | | Riske, Alison | | Stephens, Sloane | | Tiafoe, Frances | | Williams, Serena | | Williams, Venus |
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