| Argentina (1) |
|---|
| Schwartzman, Diego |
| | | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Germania (1) |
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| Zverev, Alexander |
|
| Grecia (1) |
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| Tsitsipas, Stefanos |
| | Italia (2) |
|---|
| Musetti, Lorenzo | | Sinner, Jannik |
| | | Polonia (1) |
|---|
| Hurkacz, Hubert |
|
| | | Spagna (3) |
|---|
| Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert |
| | Stati Uniti (2) |
|---|
| Fritz, Taylor | | Korda, Sebastian |
|