| Argentina (4) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Etcheverry, Tomas Martin | | Navone, Mariano |
| | Australia (3) |
|---|
| McCabe, James | | Purcell, Max | | Vukic, Aleksandar |
| | Brazil (1) |
|---|
| Seyboth Wild, Thiago |
| | China (2) |
|---|
| Shang, Juncheng | | Zhang, Zhizhen |
|
| Finland (1) |
|---|
| Ruusuvuori, Emil |
| | France (1) |
|---|
| Rinderknech, Arthur |
| | Hungary (1) |
|---|
| Marozsan, Fabian |
| | Italy (2) |
|---|
| Cobolli, Flavio | | Sonego, Lorenzo |
|
| Japan (2) |
|---|
| Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazakhstan (1) |
|---|
| Bublik, Alexander |
| | Serbia (2) |
|---|
| Djere, Laslo | | Kecmanovic, Miomir |
| | Spain (1) |
|---|
| Davidovich Fokina, Alejandro |
|
| United Kingdom (7) |
|---|
| Broady, Liam | | Broom, Charles | | Fearnley, Jacob | | Harris, Billy | | Hussey, Giles | | Norrie, Cameron | | Searle, Henry |
| | United States (3) |
|---|
| Fritz, Taylor | | Giron, Marcos | | Paul, Tommy |
|