| Argentina (3) |
|---|
| Bagnis, Facundo | | Mayer, Leonardo | | Trungelliti, Marco |
| | Kroatia (3) |
|---|
| Coric, Borna | | Galovic, Viktor | | Serdarusic, Nino |
| | Tsjekkisk Republikk (1) |
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| Vesely, Jiri |
| | Frankrike (1) |
|---|
| Moutet, Corentin |
|
| Tyskland (2) |
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| Stebe, Cedrik-Marcel | | Torebko, Peter |
| | | Italia (7) |
|---|
| Caruso, Salvatore | | Cecchinato, Marco | | Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Sinner, Jannik | | Travaglia, Stefano |
| |
| Nederland (1) |
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| Haase, Robin |
| | | Russland (1) |
|---|
| Rublev, Andrey |
| | Serbia (3) |
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| Djere, Laslo | | Krajinovic, Filip | | Lajovic, Dusan |
|
| Slovakia (1) |
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| Klizan, Martin |
| | Slovenia (1) |
|---|
| Bedene, Aljaz |
| |