| Аргентина (8) |
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| Baez, Sebastian | | Bagnis, Facundo | | Cachin, Pedro | | Cerundolo, Francisco | | Coria, Federico | | Etcheverry, Tomas Martin | | Pella, Guido | | Schwartzman, Diego |
| | Австралия (11) |
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| De Minaur, Alex | | Hijikata, Rinky | | Kokkinakis, Thanasi | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | O'Connell, Christopher | | Popyrin, Alexei | | Purcell, Max | | Thompson, Jordan | | Vukic, Aleksandar |
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| Thiem, Dominic |
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| Ivashka, Ilya |
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| Bergs, Zizou | | Goffin, David |
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| Monteiro, Thiago |
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| Dimitrov, Grigor |
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| Auger-Aliassime, Felix | | Pospisil, Vasek | | Shapovalov, Denis |
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| Garin, Christian | | Jarry, Nicolas |
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| Shang, Juncheng | | Wu, Yibing | | Zhang, Zhizhen |
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| Galan, Daniel Elahi |
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| Lehecka, Jiri | | Machac, Tomas | | Svrcina, Dalibor |
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| Ruusuvuori, Emil |
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| Франция (13) |
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| Assche, Luca Van | | Barrere, Gregoire | | Bonzi, Benjamin | | Chardy, Jeremy | | Couacaud, Enzo | | Gasquet, Richard | | Halys, Quentin | | Humbert, Ugo | | Lestienne, Constant | | Lokoli, Laurent | | Mannarino, Adrian | | Moutet, Corentin | | Rinderknech, Arthur |
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| Basilashvili, Nikoloz |
| | Германия (5) |
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| Altmaier, Daniel | | Hanfmann, Yannick | | Otte, Oscar | | Struff, Jan-Lennard | | Zverev, Alexander |
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| Tsitsipas, Stefanos |
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| Daniel, Taro | | Nishioka, Yoshihito | | Watanuki, Yosuke |
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| Bublik, Alexander |
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| Varillas, Juan Pablo |
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| Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Krajinovic, Filip | | Lajovic, Dusan |
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| Harris, Lloyd |
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| Kwon, Soonwoo |
| | Испания (9) |
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| Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Martinez, Pedro | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Zapata Miralles, Bernabe |
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| Huesler, Marc-Andrea | | Wawrinka, Stan |
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| Hsu, Yu Hsiou | | Tseng, Chun-Hsin |
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| Krutykh, Oleksii |
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| Draper, Jack | | Edmund, Kyle | | Evans, Daniel | | Murray, Andy | | Norrie, Cameron |
| | Соединенные Штаты (16) |
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| Brooksby, Jenson | | Cressy, Maxime | | Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Holt, Brandon | | Isner, John | | Korda, Sebastian | | Kudla, Denis | | McDonald, Mackenzie | | Mmoh, Michael | | Nakashima, Brandon | | Paul, Tommy | | Shelton, Ben | | Tiafoe, Frances | | Wolf, J.J. |
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