| Argentina (3) |
|---|
| Bagnis, Facundo | | Mayer, Leonardo | | Trungelliti, Marco |
| | Croatia (3) |
|---|
| Coric, Borna | | Galovic, Viktor | | Serdarusic, Nino |
| | Czech Republic (1) |
|---|
| Vesely, Jiri |
| | France (1) |
|---|
| Moutet, Corentin |
|
| Germany (2) |
|---|
| Stebe, Cedrik-Marcel | | Torebko, Peter |
| | Hungary (1) |
|---|
| Balazs, Attila |
| | Italy (7) |
|---|
| Caruso, Salvatore | | Cecchinato, Marco | | Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Sinner, Jannik | | Travaglia, Stefano |
| |
| Netherlands (1) |
|---|
| Haase, Robin |
| | | | Serbia (3) |
|---|
| Djere, Laslo | | Krajinovic, Filip | | Lajovic, Dusan |
|
| Slovakia (1) |
|---|
| Klizan, Martin |
| | Slovenia (1) |
|---|
| Bedene, Aljaz |
| |