| Аргентина (8) |
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| Baez, Sebastian | | Bagnis, Facundo | | Cachin, Pedro | | Cerundolo, Francisco | | Coria, Federico | | Delbonis, Federico | | Etcheverry, Tomas Martin | | Schwartzman, Diego |
| | Австралия (10) |
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| De Minaur, Alex | | Duckworth, James | | Hijikata, Rinky | | Kokkinakis, Thanasi | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | O'Connell, Christopher | | Popyrin, Alexei | | Thompson, Jordan |
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| Thiem, Dominic |
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| Ivashka, Ilya |
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| Galan, Daniel Elahi |
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| Ruusuvuori, Emil |
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| Грузия (1) |
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| Basilashvili, Nikoloz |
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| Kwon, Soonwoo |
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| Alcaraz, Carlos | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Martinez, Pedro | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando | | Zapata Miralles, Bernabe |
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| Tseng, Chun-Hsin |
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| Draper, Jack | | Edmund, Kyle | | Evans, Daniel | | Murray, Andy | | Norrie, Cameron |
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| Brooksby, Jenson | | Cressy, Maxime | | Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Holt, Brandon | | Isner, John | | Johnson, Steve | | Korda, Sebastian | | Kozlov, Stefan | | Kudla, Denis | | McDonald, Mackenzie | | Nakashima, Brandon | | Nava, Emilio | | Paul, Tommy | | Querrey, Sam | | Shelton, Ben | | Sock, Jack | | Tiafoe, Frances | | Tien, Learner | | Wolf, J.J. |
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