| Argentina (2) |
|---|
| Coria, Federico | | Pella, Guido |
| | Australia (2) |
|---|
| Duckworth, James | | Millman, John |
| | Belarus (2) |
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| Gerasimov, Egor | | Ivashka, Ilya |
| | Bosnia-Herzegovina (1) |
|---|
| Dzumhur, Damir |
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| Croatia (2) |
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| Cilic, Marin | | Gojo, Borna |
| | France (3) |
|---|
| Bonzi, Benjamin | | Mannarino, Adrian | | Simon, Gilles |
| | Japan (1) |
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| Nishioka, Yoshihito |
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|---|
| Bublik, Alexander |
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| Lithuania (1) |
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| Berankis, Ricardas |
| | Russia (6) |
|---|
| Donskoy, Evgeny | | Kachmazov, Alibek | | Karatsev, Aslan | | Khachanov, Karen | | Rublev, Andrey | | Safiullin, Roman |
| | Serbia (3) |
|---|
| Djere, Laslo | | Kecmanovic, Miomir | | Krajinovic, Filip |
| |
| | Ukraine (1) |
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| Marchenko, Illya |
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|---|
| McDonald, Mackenzie | | Paul, Tommy |
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