| Argentina (1) |
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| Mayer, Leonardo |
| | Austrálie (1) |
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| Millman, John |
| | Brazílie (1) |
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| Monteiro, Thiago |
| | Kanada (2) |
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| Pospisil, Vasek | | Shapovalov, Denis |
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| Francie (3) |
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| Humbert, Ugo | | Mannarino, Adrian | | Paire, Benoit |
| | Itálie (5) |
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| Cecchinato, Marco | | Fognini, Fabio | | Seppi, Andreas | | Sinner, Jannik | | Sonego, Lorenzo |
| | | Nový Zéland (1) |
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| Venus, Michael |
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| Hurkacz, Hubert |
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| Sousa, Joao |
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| Khachanov, Karen |
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| Španělsko (3) |
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| Andujar, Pablo | | Davidovich Fokina, Alejandro | | Lopez, Feliciano |
| | | Velká Británie (2) |
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| Edmund, Kyle | | Norrie, Cameron |
| | USA (4) |
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| Isner, John | | Mmoh, Michael | | Sandgren, Tennys | | Tiafoe, Frances |
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