| Argentina (4) |
|---|
| Baez, Sebastian | | Cachin, Pedro | | Cerundolo, Francisco | | Trungelliti, Marco |
| | Austria (1) |
|---|
| Thiem, Dominic |
| | | Brazil (1) |
|---|
| Monteiro, Thiago |
|
| France (4) |
|---|
| Bonzi, Benjamin | | Guinard, Manuel | | Lestienne, Constant | | Rinderknech, Arthur |
| | | | Russia (2) |
|---|
| Rublev, Andrey | | Vatutin, Alexey |
|
| Spain (9) |
|---|
| Alvarez Varona, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Landaluce, Martin | | Lopez, Feliciano | | Munar, Jaume | | Ramos-Vinolas, Albert | | Taberner, Carlos |
| | United Kingdom (1) |
|---|
| Murray, Andy |
| | United States (3) |
|---|
| Giron, Marcos | | Korda, Sebastian | | Paul, Tommy |
|