Argentina (3) |
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Cachin, Pedro | Cerundolo, Francisco | Schwartzman, Diego |
| Austria (4) |
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Misolic, Filip | Novak, Dennis | Rodionov, Jurij | Thiem, Dominic |
| Brazil (1) |
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Monteiro, Thiago |
| Bulgaria (1) |
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Dimitrov, Grigor |
|
Canada (1) |
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Shapovalov, Denis |
| Chile (1) |
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Garin, Christian |
| | Finland (1) |
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Ruusuvuori, Emil |
|
| Georgia (1) |
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Basilashvili, Nikoloz |
| | Greece (1) |
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Tsitsipas, Stefanos |
|
Italy (3) |
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Berrettini, Matteo | Sinner, Jannik | Sonego, Lorenzo |
| Japan (1) |
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Nishioka, Yoshihito |
| Netherlands (1) |
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Griekspoor, Tallon |
| Poland (1) |
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Hurkacz, Hubert |
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Russia (3) |
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Khachanov, Karen | Medvedev, Daniil | Rublev, Andrey |
| United Kingdom (2) |
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Evans, Daniel | Norrie, Cameron |
| United States (5) |
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Fritz, Taylor | Giron, Marcos | Paul, Tommy | Tiafoe, Frances | Wolf, J.J. |
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