| Argentina (1) |
|---|
| Schwartzman, Diego |
| | Australia (4) |
|---|
| Duckworth, James | | Millman, John | | Popyrin, Alexei | | Thompson, Jordan |
| | Østerrike (1) |
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| Novak, Dennis |
| | Belarus (1) |
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| Gerasimov, Egor |
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| Bosnia og Herzegovina (1) |
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| Dzumhur, Damir |
| | Canada (2) |
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| Auger-Aliassime, Felix | | Shapovalov, Denis |
| | | Frankrike (3) |
|---|
| Herbert, Pierre-Hugues | | Mannarino, Adrian | | Simon, Gilles |
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| Tyskland (4) |
|---|
| Altmaier, Daniel | | Otte, Oscar | | Struff, Jan-Lennard | | Zverev, Alexander |
| | | Italia (2) |
|---|
| Cecchinato, Marco | | Sinner, Jannik |
| | Japan (1) |
|---|
| Nishioka, Yoshihito |
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| Serbia (2) |
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| Kecmanovic, Miomir | | Petrovic, Danilo |
| | Spania (2) |
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| Davidovich Fokina, Alejandro | | Verdasco, Fernando |
| | | Amerika (2) |
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| Johnson, Steve | | Sandgren, Tennys |
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