| Аргентина (2) |
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| Delbonis, Federico | | Etcheverry, Tomas Martin |
| | Австрия (1) |
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| Thiem, Dominic |
| | | Бразилия (1) |
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| Monteiro, Thiago |
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| Чили (2) |
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| Garin, Christian | | Jarry, Nicolas |
| | Чехия (2) |
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| Kopriva, Vit | | Lehecka, Jiri |
| | Франция (4) |
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| Gasquet, Richard | | Gaston, Hugo | | Moutet, Corentin | | Paire, Benoit |
| | Германия (1) |
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| Hanfmann, Yannick |
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| Италия (2) |
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| Berrettini, Matteo | | Sonego, Lorenzo |
| | | Перу (1) |
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| Varillas, Juan Pablo |
| | Португалия (1) |
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| Sousa, Joao |
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| | Испания (7) |
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| Bautista Agut, Roberto | | Carballes Baena, Roberto | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Taberner, Carlos | | Zapata Miralles, Bernabe |
| | Швеция (2) |
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| Ymer, Elias | | Ymer, Mikael |
| | Швейцария (3) |
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| Huesler, Marc-Andrea | | Ritschard, Alexander | | Stricker, Dominic |
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