| Argentina (5) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Cerundolo, Juan Manuel | | Navone, Mariano | | Tirante, Thiago Agustin |
| | Australia (1) |
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| De Minaur, Alex |
| | Canada (1) |
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| Auger-Aliassime, Felix |
| | Cina (3) |
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| Bu, Yunchaokete | | Shang, Juncheng | | Zhang, Zhizhen |
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| Repubblica Ceca (2) |
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| Machac, Tomas | | Mensik, Jakub |
| | Francia (3) |
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| Gea, Arthur | | Halys, Quentin | | Rinderknech, Arthur |
| | Germania (2) |
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| Struff, Jan-Lennard | | Zverev, Alexander |
| | Italia (1) |
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| Cobolli, Flavio |
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| Kazakistan (1) |
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| Bublik, Alexander |
| | Olanda (2) |
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| Griekspoor, Tallon | | Zandschulp, Botic van de |
| | | Polonia (1) |
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| Hurkacz, Hubert |
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| Portogallo (1) |
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| Borges, Nuno |
| | Russia (4) |
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| Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey | | Safiullin, Roman |
| | Serbia (1) |
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| Djokovic, Novak |
| | Slovacchia (1) |
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| Molcan, Alex |
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| Spagna (1) |
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| Carreno Busta, Pablo |
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| Norrie, Cameron |
| | Stati Uniti (1) |
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| Tien, Learner |
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