| Argentina (1) |
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| Andreozzi, Guido |
| | Australia (1) |
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| De Minaur, Alex |
| | Canada (1) |
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| Shapovalov, Denis |
| | Danimarca (1) |
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| Rune, Holger |
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| | Francia (1) |
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| Mannarino, Adrian |
| | Germania (2) |
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| Altmaier, Daniel | | Otte, Oscar |
| | Italia (3) |
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| Berrettini, Jacopo | | Berrettini, Matteo | | Darderi, Luciano |
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| Giappone (2) |
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| Daniel, Taro | | Nishioka, Yoshihito |
| | Messico (1) |
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| Pacheco Mendez, Rodrigo |
| | | Portogallo (1) |
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| Borges, Nuno |
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| Serbia (1) |
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| Kecmanovic, Miomir |
| | Slovacchia (1) |
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| Molcan, Alex |
| | Spagna (2) |
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| Alcaraz, Carlos | | Lopez, Feliciano |
| |
| Regno Unito (1) |
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| Norrie, Cameron |
| | Stati Uniti (12) |
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| Chappell, Nick | | Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Isner, John | | McDonald, Mackenzie | | Mmoh, Michael | | Nakashima, Brandon | | Paul, Tommy | | Shelton, Ben | | Tiafoe, Frances | | Wolf, J.J. |
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