| Argentina (2) |
|---|
| Cerundolo, Francisco | | Schwartzman, Diego |
| | Australien (3) |
|---|
| De Minaur, Alex | | Duckworth, James | | Millman, John |
| | Brasilien (1) |
|---|
| Monteiro, Thiago |
| | Chile (1) |
|---|
| Garin, Christian |
|
| | Frankrig (2) |
|---|
| Humbert, Ugo | | Mannarino, Adrian |
| | Italien (2) |
|---|
| Sinner, Jannik | | Sonego, Lorenzo |
| | Kasakhstan (1) |
|---|
| Bublik, Alexander |
|
| Spanien (2) |
|---|
| Davidovich Fokina, Alejandro | | Martinez, Pedro |
| | Storbritannien (5) |
|---|
| Clarke, Jay | | Draper, Jack | | Evans, Daniel | | Norrie, Cameron | | Peniston, Ryan |
| | USA (8) |
|---|
| Brooksby, Jenson | | Cressy, Maxime | | Fritz, Taylor | | Korda, Sebastian | | Nakashima, Brandon | | Opelka, Reilly | | Paul, Tommy | | Tiafoe, Frances |
|