| Australia (2) |
|---|
| De Minaur, Alex | | Popyrin, Alexei |
| | Canada (2) |
|---|
| Pospisil, Vasek | | Schnur, Brayden |
| | | Frankrike (9) |
|---|
| Barrere, Gregoire | | Gasquet, Richard | | Hoang, Antoine | | Humbert, Ugo | | Monfils, Gael | | Muller, Alexandre | | Pouille, Lucas | | Rinderknech, Arthur | | Simon, Gilles |
|
| Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (3) |
|---|
| Gojowczyk, Peter | | Kohlschreiber, Philipp | | Struff, Jan-Lennard |
| | Ungarn (1) |
|---|
| Fucsovics, Marton |
| | Italia (3) |
|---|
| Cecchinato, Marco | | Mager, Gianluca | | Sonego, Lorenzo |
|
| | Russland (1) |
|---|
| Khachanov, Karen |
| | Spania (3) |
|---|
| Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Zapata Miralles, Bernabe |
| |
| |