| Argentinië (6) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Coria, Federico | | Delbonis, Federico | | Etcheverry, Tomas Martin | | Schwartzman, Diego |
| | Oostenrijk (1) |
|---|
| Thiem, Dominic |
| | Colombia (1) |
|---|
| Galan, Daniel Elahi |
| | Denemarken (1) |
|---|
| Rune, Holger |
|
| Finland (1) |
|---|
| Ruusuvuori, Emil |
| | Frankrijk (2) |
|---|
| Gaston, Hugo | | Rinderknech, Arthur |
| | Georgië (1) |
|---|
| Basilashvili, Nikoloz |
| | Duitsland (1) |
|---|
| Altmaier, Daniel |
|
| Italië (3) |
|---|
| Fognini, Fabio | | Musetti, Lorenzo | | Sonego, Lorenzo |
| | Noorwegen (1) |
|---|
| Ruud, Casper |
| | Portugal (2) |
|---|
| Sousa, Joao | | Sousa, Pedro |
| | Rusland (3) |
|---|
| Karatsev, Aslan | | Kotov, Pavel | | Rublev, Andrey |
|
| | Spanje (5) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Munar, Jaume | | Ramos-Vinolas, Albert |
| | | Zwitserland (2) |
|---|
| Huesler, Marc-Andrea | | Wawrinka, Stan |
|