| Argentina (6) |
|---|
| Andreozzi, Guido | | Delbonis, Federico | | Londero, Juan Ignacio | | Mayer, Leonardo | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australia (1) |
|---|
| Millman, John |
| | Austria (1) |
|---|
| Melzer, Gerald |
| | Brasil (1) |
|---|
| Monteiro, Thiago |
|
| Czech Republic (1) |
|---|
| Kolar, Zdenek |
| | France (2) |
|---|
| Gasquet, Richard | | Moutet, Corentin |
| | Italy (4) |
|---|
| Berrettini, Matteo | | Bolelli, Simone | | Fognini, Fabio | | Sonego, Lorenzo |
| |
| | Portugal (2) |
|---|
| Elias, Gastao | | Sousa, Pedro |
| | Spain (5) |
|---|
| Carballes Baena, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Munar, Jaume | | Verdasco, Fernando |
| | Sweden (2) |
|---|
| Ymer, Elias | | Ymer, Mikael |
|
| Swiss (1) |
|---|
| Laaksonen, Henri |
| | Uzbekistan (1) |
|---|
| Istomin, Denis |
|