| Argentina (1) |
|---|
| Schwartzman, Diego |
| | | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Germany (1) |
|---|
| Zverev, Alexander |
|
| Greece (1) |
|---|
| Tsitsipas, Stefanos |
| | Italy (2) |
|---|
| Musetti, Lorenzo | | Sinner, Jannik |
| | | Poland (1) |
|---|
| Hurkacz, Hubert |
|
| | | Spain (3) |
|---|
| Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert |
| | United States (2) |
|---|
| Fritz, Taylor | | Korda, Sebastian |
|