| Argentina (6) |
|---|
| Berlocq, Carlos | | Delbonis, Federico | | Kicker, Nicolas | | Mayer, Leonardo | | Schwartzman, Diego | | Zeballos, Horacio |
| | Austria (1) |
|---|
| Haider-Maurer, Andreas |
| | Bosnia-Erzegovina (1) |
|---|
| Dzumhur, Damir |
| | Brasile (1) |
|---|
| Dutra Silva, Rogerio |
|
| Repubblica Ceca (1) |
|---|
| Vesely, Jiri |
| | Repubblica Dominicana (1) |
|---|
| Hernandez-Fernandez, Jose |
| | Francia (2) |
|---|
| Paire, Benoit | | Simon, Gilles |
| | Georgia (1) |
|---|
| Basilashvili, Nikoloz |
|
| Germania (8) |
|---|
| Altmaier, Daniel | | Haas, Tommy | | Kohlschreiber, Philipp | | Marterer, Maximilian | | Mayer, Florian | | Molleker, Rudolf | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard |
| | Italia (1) |
|---|
| Cecchinato, Marco |
| | Russia (5) |
|---|
| Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsov, Andrey | | Rublev, Andrey | | Tursunov, Dmitry |
| | Slovenia (1) |
|---|
| Bedene, Aljaz |
|
| Spagna (3) |
|---|
| Ferrer, David | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| |