| Argentina (7) |
|---|
| Baez, Sebastian | | Bagnis, Facundo | | Cerundolo, Francisco | | Coria, Federico | | Delbonis, Federico | | Londero, Juan Ignacio | | Schwartzman, Diego |
| | Brasil (2) |
|---|
| Meligeni Alves, Felipe | | Monteiro, Thiago |
| | Chile (1) |
|---|
| Garin, Christian |
| |
| Colombia (1) |
|---|
| Galan, Daniel Elahi |
| | | Italy (3) |
|---|
| Berrettini, Matteo | | Fognini, Fabio | | Sonego, Lorenzo |
| |
| Serbia (3) |
|---|
| Djere, Laslo | | Kecmanovic, Miomir | | Lajovic, Dusan |
| | Spain (8) |
|---|
| Alcaraz, Carlos | | Andujar, Pablo | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| |