| Argentina (2) |
|---|
| Pella, Guido | | Trungelliti, Marco |
| | Bosnien og Herzegovina (1) |
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| Dzumhur, Damir |
| | Brasilien (1) |
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| Dutra Silva, Rogerio |
| | Canada (1) |
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| Auger-Aliassime, Felix |
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| | Kroatien (2) |
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| Serdarusic, Nino | | Skugor, Franko |
| | | Frankrig (1) |
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| Paire, Benoit |
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| Georgien (1) |
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| Basilashvili, Nikoloz |
| | Tyskland (1) |
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| Marterer, Maximilian |
| | Ungarn (1) |
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| Fucsovics, Marton |
| | Italien (3) |
|---|
| Cecchinato, Marco | | Lorenzi, Paolo | | Travaglia, Stefano |
|
| | | | Rusland (3) |
|---|
| Donskoy, Evgeny | | Rublev, Andrey | | Vatutin, Alexey |
|
| Serbien (2) |
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| Djere, Laslo | | Lajovic, Dusan |
| | Slovakiet (2) |
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| Klizan, Martin | | Martin, Andrej |
| | Slovenien (1) |
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| Bedene, Aljaz |
| | Spanien (1) |
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| Ramos-Vinolas, Albert |
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