| Argentina (4) |
|---|
| Baez, Sebastian | | Cachin, Pedro | | Cerundolo, Francisco | | Trungelliti, Marco |
| | Austria (1) |
|---|
| Thiem, Dominic |
| | Bielorussia (1) |
|---|
| Ivashka, Ilya |
| | Brasile (1) |
|---|
| Monteiro, Thiago |
|
| Francia (4) |
|---|
| Bonzi, Benjamin | | Guinard, Manuel | | Lestienne, Constant | | Rinderknech, Arthur |
| | | Portogallo (1) |
|---|
| Sousa, Joao |
| | Russia (2) |
|---|
| Rublev, Andrey | | Vatutin, Alexey |
|
| Spagna (9) |
|---|
| Alvarez Varona, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Landaluce, Martin | | Lopez, Feliciano | | Munar, Jaume | | Ramos-Vinolas, Albert | | Taberner, Carlos |
| | Regno Unito (1) |
|---|
| Murray, Andy |
| | Stati Uniti (3) |
|---|
| Giron, Marcos | | Korda, Sebastian | | Paul, Tommy |
|