| Аргентина (6) |
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| Berlocq, Carlos | | Delbonis, Federico | | Kicker, Nicolas | | Mayer, Leonardo | | Schwartzman, Diego | | Zeballos, Horacio |
| | Австрия (1) |
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| Haider-Maurer, Andreas |
| | Босния и Герцеговина (1) |
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| Dzumhur, Damir |
| | Бразилия (1) |
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| Dutra Silva, Rogerio |
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| | Доминиканская Республика (1) |
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| Hernandez-Fernandez, Jose |
| | Франция (2) |
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| Paire, Benoit | | Simon, Gilles |
| | Грузия (1) |
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| Basilashvili, Nikoloz |
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| Германия (8) |
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| Altmaier, Daniel | | Haas, Tommy | | Kohlschreiber, Philipp | | Marterer, Maximilian | | Mayer, Florian | | Molleker, Rudolf | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard |
| | Италия (1) |
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| Cecchinato, Marco |
| | Россия (5) |
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| Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsov, Andrey | | Rublev, Andrey | | Tursunov, Dmitry |
| | Словения (1) |
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| Bedene, Aljaz |
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| Испания (3) |
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| Ferrer, David | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
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