| Аргентина (8) |
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| Baez, Sebastian | | Cachin, Pedro | | Cerundolo, Francisco | | Cerundolo, Juan Manuel | | Coria, Federico | | Etcheverry, Tomas Martin | | Pella, Guido | | Schwartzman, Diego |
| | Австралия (7) |
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| De Minaur, Alex | | Kubler, Jason | | O'Connell, Christopher | | Popyrin, Alexei | | Purcell, Max | | Thompson, Jordan | | Vukic, Aleksandar |
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| Novak, Dennis | | Ofner, Sebastian | | Thiem, Dominic |
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| Ivashka, Ilya |
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| Coppejans, Kimmer | | Goffin, David |
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| Monteiro, Thiago |
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| Dimitrov, Grigor |
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| Barrios Vera, Tomas | | Jarry, Nicolas |
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| Wu, Yibing | | Zhang, Zhizhen |
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| Galan, Daniel Elahi |
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| Coric, Borna | | Gojo, Borna |
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| Lehecka, Jiri | | Machac, Tomas | | Vesely, Jiri |
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| Ruusuvuori, Emil |
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| Франция (16) |
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| Assche, Luca Van | | Barrere, Gregoire | | Bonzi, Benjamin | | Chardy, Jeremy | | Couacaud, Enzo | | Fils, Arthur | | Gasquet, Richard | | Halys, Quentin | | Humbert, Ugo | | Lestienne, Constant | | Lokoli, Laurent | | Mannarino, Adrian | | Mayot, Harold | | Moutet, Corentin | | Muller, Alexandre | | Rinderknech, Arthur |
| | Германия (6) |
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| Altmaier, Daniel | | Hanfmann, Yannick | | Koepfer, Dominik | | Marterer, Maximilian | | Otte, Oscar | | Zverev, Alexander |
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| Tsitsipas, Stefanos |
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| Arnaldi, Matteo | | Berrettini, Matteo | | Cecchinato, Marco | | Musetti, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo |
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| Daniel, Taro | | Mochizuki, Shintaro | | Nishioka, Yoshihito | | Shimabukuro, Sho | | Watanuki, Yosuke |
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| Bublik, Alexander | | Shevchenko, Alexander |
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| Brouwer, Gijs | | Griekspoor, Tallon | | Zandschulp, Botic van de |
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| Varillas, Juan Pablo |
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| Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Lajovic, Dusan | | Medjedovic, Hamad |
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| Южная Африка (1) |
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| Harris, Lloyd |
| | Испания (7) |
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| Alcaraz, Carlos | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Davidovich Fokina, Alejandro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Zapata Miralles, Bernabe |
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| Huesler, Marc-Andrea | | Stricker, Dominic | | Wawrinka, Stan |
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| Великобритания (8) |
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| Broady, Liam | | Choinski, Jan | | Evans, Daniel | | Fery, Arthur | | Loffhagen, George | | Murray, Andy | | Norrie, Cameron | | Peniston, Ryan |
| | Соединенные Штаты (13) |
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| Cressy, Maxime | | Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Isner, John | | Korda, Sebastian | | McDonald, Mackenzie | | Mmoh, Michael | | Nakashima, Brandon | | Paul, Tommy | | Shelton, Ben | | Tiafoe, Frances | | Wolf, J.J. |
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