| Argentina (1) |
|---|
| Schwartzman, Diego |
| | | Bulgarien (1) |
|---|
| Dimitrov, Grigor |
| | Tyskland (1) |
|---|
| Zverev, Alexander |
|
| Grækenland (1) |
|---|
| Tsitsipas, Stefanos |
| | Italien (2) |
|---|
| Musetti, Lorenzo | | Sinner, Jannik |
| | |
| Rusland (1) |
|---|
| Rublev, Andrey |
| | | Spanien (3) |
|---|
| Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert |
| | USA (2) |
|---|
| Fritz, Taylor | | Korda, Sebastian |
|