| Argentina (2) |
|---|
| Pella, Guido | | Trungelliti, Marco |
| | Bosnia y Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Brasil (1) |
|---|
| Dutra Silva, Rogerio |
| | Canadá (1) |
|---|
| Auger-Aliassime, Felix |
|
| | Croacia (2) |
|---|
| Serdarusic, Nino | | Skugor, Franko |
| | República Checa (1) |
|---|
| Vesely, Jiri |
| |
| Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Alemania (1) |
|---|
| Marterer, Maximilian |
| | Hungría (1) |
|---|
| Fucsovics, Marton |
| | Italia (3) |
|---|
| Cecchinato, Marco | | Lorenzi, Paolo | | Travaglia, Stefano |
|
| | Países Bajos (1) |
|---|
| Haase, Robin |
| | | Rusia (3) |
|---|
| Donskoy, Evgeny | | Rublev, Andrey | | Vatutin, Alexey |
|
| Serbia (2) |
|---|
| Djere, Laslo | | Lajovic, Dusan |
| | Eslovaquia (2) |
|---|
| Klizan, Martin | | Martin, Andrej |
| | Eslovenia (1) |
|---|
| Bedene, Aljaz |
| | España (1) |
|---|
| Ramos-Vinolas, Albert |
|
|