| Argentina (3) |
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| Del Potro, Juan Martin | | Pella, Guido | | Schwartzman, Diego |
| | Australien (5) |
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| Barty, Ashleigh | | De Minaur, Alex | | Kyrgios, Nick | | Millman, John | | Tomljanovic, Ajla |
| | | Hviderusland (3) |
|---|
| Azarenka, Victoria | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
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| Belgien (2) |
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| Goffin, David | | Mertens, Elise |
| | Bulgarien (1) |
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| Dimitrov, Grigor |
| | Canada (2) |
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| Auger-Aliassime, Felix | | Shapovalov, Denis |
| | Kina (3) |
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| Wang, Qiang | | Zhang, Shuai | | Zheng, Saisai |
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| Kroatien (2) |
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| Cilic, Marin | | Coric, Borna |
| | Tjekkiet (5) |
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| Kvitova, Petra | | Pliskova, Karolina | | Siniakova, Katerina | | Strycova, Barbora | | Vondrousova, Marketa |
| | Danmark (1) |
|---|
| Wozniacki, Caroline |
| | Estland (1) |
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| Kontaveit, Anett |
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| Frankrig (10) |
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| Chardy, Jeremy | | Cornet, Alizé | | Garcia, Caroline | | Gasquet, Richard | | Mladenovic, Kristina | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
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| Basilashvili, Nikoloz |
| | Tyskland (5) |
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| Barthel, Mona | | Goerges, Julia | | Kohlschreiber, Philipp | | Struff, Jan-Lennard | | Zverev, Alexander |
| | Grækenland (2) |
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| Sakkari, Maria | | Tsitsipas, Stefano |
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| Ungarn (1) |
|---|
| Fucsovics, Marton |
| | Italien (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 |
| | Kasakhstan (2) |
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| Kukushkin, Mikhail | | Putintseva, Yulia |
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| Letland (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
| | | |
| | Rumænien (3) |
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| Begu, Irina-Camelia | | Buzarnescu, Mihaela | | Halep, Simona |
| | Rusland (4) |
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| Kasatkina, Daria | | Khachanov, Karen | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia |
| | Serbien (2) |
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| Djere, Laslo | | Djokovic, Novak |
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| Slovakiet (2) |
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| Cibulkova, Dominika | | Kuzmova, Viktoria |
| | Slovenien (2) |
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| Hercog, Polona | | Zidansek, Tamara |
| | Spanien (7) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Muguruza, Garbiñe | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Sverige (1) |
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| Peterson, Rebecca |
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| Schweizisk (3) |
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| Bencic, Belinda | | Federer, Roger | | Wawrinka, Stan |
| | | Ukraine (3) |
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| Svitolina, Elina | | Tsurenko, Lesia | | Yastremska, Dayana |
| | Storbritannien (4) |
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| Edmund, Kyle | | Evans, Daniel | | Konta, Johanna | | Norrie, Cameron |
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| USA (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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