| Argentina (6) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Coria, Federico | | Delbonis, Federico | | Etcheverry, Tomas Martin | | Schwartzman, Diego |
| | | Colombia (1) |
|---|
| Galan, Daniel Elahi |
| |
| Finland (1) |
|---|
| Ruusuvuori, Emil |
| | Frankrig (2) |
|---|
| Gaston, Hugo | | Rinderknech, Arthur |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (1) |
|---|
| Altmaier, Daniel |
|
| Italien (3) |
|---|
| Fognini, Fabio | | Musetti, Lorenzo | | Sonego, Lorenzo |
| | | Portugal (2) |
|---|
| Sousa, Joao | | Sousa, Pedro |
| | Rusland (3) |
|---|
| Karatsev, Aslan | | Kotov, Pavel | | Rublev, Andrey |
|
| | Spanien (5) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Munar, Jaume | | Ramos-Vinolas, Albert |
| | | Schweizisk (2) |
|---|
| Huesler, Marc-Andrea | | Wawrinka, Stan |
|