| Аргентина (10) |
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| Baez, Sebastian | | Cachin, Pedro | | Cerundolo, Francisco | | Coria, Federico | | Diaz Acosta, Facundo | | Etcheverry, Tomas Martin | | Olivieri, Genaro Alberto | | Pella, Guido | | Schwartzman, Diego | | Tirante, Thiago Agustin |
| | Австралия (7) |
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| De Minaur, Alex | | Kokkinakis, Thanasi | | Kubler, Jason | | O'Connell, Christopher | | Popyrin, Alexei | | Purcell, Max | | Thompson, Jordan |
| | Австрия (3) |
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| Ofner, Sebastian | | Rodionov, Jurij | | Thiem, Dominic |
| | Беларусь (1) |
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| Ivashka, Ilya |
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| | | Бразилия (2) |
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| Monteiro, Thiago | | Seyboth Wild, Thiago |
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| Dimitrov, Grigor |
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| Канада (2) |
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| Auger-Aliassime, Felix | | Shapovalov, Denis |
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| Shang, Juncheng | | Wu, Yibing | | Zhang, Zhizhen |
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| Galan, Daniel Elahi |
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| Lehecka, Jiri | | Vesely, Jiri |
| | | Финляндия (1) |
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| Ruusuvuori, Emil |
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| Франция (18) |
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| Assche, Luca Van | | Barrere, Gregoire | | Cazaux, Arthur | | Fils, Arthur | | Gasquet, Richard | | Gaston, Hugo | | Grenier, Hugo | | Halys, Quentin | | Humbert, Ugo | | Lestienne, Constant | | Mannarino, Adrian | | Monfils, Gael | | Moutet, Corentin | | Mpetshi Perricard, Giovanni | | Muller, Alexandre | | Paire, Benoit | | Pouille, Lucas | | Rinderknech, Arthur |
| | Германия (5) |
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| Altmaier, Daniel | | Hanfmann, Yannick | | Otte, Oscar | | Struff, Jan-Lennard | | Zverev, Alexander |
| | Греция (1) |
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| Tsitsipas, Stefanos |
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| Fucsovics, Marton |
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| Италия (9) |
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| Arnaldi, Matteo | | Cecchinato, Marco | | Cobolli, Flavio | | Fognini, Fabio | | Musetti, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo | | Vavassori, Andrea | | Zeppieri, Giulio |
| | Япония (2) |
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| Daniel, Taro | | Nishioka, Yoshihito |
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| Bublik, Alexander | | Shevchenko, Alexander | | Skatov, Timofey |
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| Нидерланды (2) |
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| Griekspoor, Tallon | | Zandschulp, Botic van de |
| | | Перу (1) |
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| Varillas, Juan Pablo |
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| Hurkacz, Hubert |
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| Borges, Nuno |
| | Россия (4) |
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| Karatsev, Aslan | | Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | Сербия (6) |
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| Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Krajinovic, Filip | | Lajovic, Dusan | | Medjedovic, Hamad |
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| Южная Африка (1) |
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| Harris, Lloyd |
| | Испания (8) |
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| Alcaraz, Carlos | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Davidovich Fokina, Alejandro | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Zapata Miralles, Bernabe |
| | Швеция (2) |
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| Ymer, Elias | | Ymer, Mikael |
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| Huesler, Marc-Andrea | | Stricker, Dominic | | Wawrinka, Stan |
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| Великобритания (3) |
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| Draper, Jack | | Evans, Daniel | | Norrie, Cameron |
| | Соединенные Штаты (16) |
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| Cressy, Maxime | | Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Isner, John | | Korda, Sebastian | | Kovacevic, Aleksandar | | Kypson, Patrick | | McDonald, Mackenzie | | Mmoh, Michael | | Nakashima, Brandon | | Nava, Emilio | | Paul, Tommy | | Shelton, Ben | | Tiafoe, Frances | | Wolf, J.J. |
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