| Argentína (6) |
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| Baez, Sebastian | | Cachin, Pedro | | Cerundolo, Francisco | | Etcheverry, Tomas Martin | | Navone, Mariano | | Schwartzman, Diego |
| | Austrália (6) |
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| De Minaur, Alex | | Hijikata, Rinky | | O'Connell, Christopher | | Popyrin, Alexei | | Thompson, Jordan | | Vukic, Aleksandar |
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| Ofner, Sebastian |
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| Jarry, Nicolas | | Tabilo, Alejandro |
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| Shang, Juncheng | | Zhang, Zhizhen |
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| Galan, Daniel Elahi |
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| Machac, Tomas | | Mensik, Jakub |
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| Ruusuvuori, Emil |
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| Atmane, Terence | | Barrere, Gregoire | | Fils, Arthur | | Humbert, Ugo | | Mannarino, Adrian | | Mayot, Harold | | Monfils, Gael | | Moutet, Corentin | | Muller, Alexandre | | Rinderknech, Arthur |
| | Nemecko (6) |
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| Altmaier, Daniel | | Hanfmann, Yannick | | Koepfer, Dominik | | Marterer, Maximilian | | Struff, Jan-Lennard | | Zverev, Alexander |
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| Tsitsipas, Stefanos |
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| Arnaldi, Matteo | | Berrettini, Matteo | | Cobolli, Flavio | | Darderi, Luciano | | Fognini, Fabio | | Gigante, Matteo | | Musetti, Lorenzo | | Napolitano, Stefano | | Nardi, Luca | | Passaro, Francesco | | Sonego, Lorenzo | | Vavassori, Andrea | | Zeppieri, Giulio |
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| Nishioka, Yoshihito |
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| Hurkacz, Hubert |
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| Borges, Nuno |
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| Djokovic, Novak | | Kecmanovic, Miomir | | Lajovic, Dusan | | Medjedovic, Hamad |
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| Carballes Baena, Roberto | | Davidovich Fokina, Alejandro | | Martinez, Pedro | | Munar, Jaume | | Nadal, Rafael |
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| Veľká Británia (3) |
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| Draper, Jack | | Evans, Daniel | | Norrie, Cameron |
| | USA (12) |
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| Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Korda, Sebastian | | McDonald, Mackenzie | | Michelsen, Alex | | Moreno De Alboran, Nicolas | | Nakashima, Brandon | | Paul, Tommy | | Shelton, Ben | | Tiafoe, Frances | | Wolf, J.J. |
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