| Argentina (2) |
|---|
| Del Potro, Juan Martin | | Schwartzman, Diego |
| | Australien (2) |
|---|
| De Minaur, Alex | | Kyrgios, Nick |
| | Bulgarien (1) |
|---|
| Dimitrov, Grigor |
| | Canada (3) |
|---|
| Auger-Aliassime, Felix | | Raonic, Milos | | Shapovalov, Denis |
|
| Chile (1) |
|---|
| Garin, Christian |
| | | Frankrig (5) |
|---|
| Chardy, Jeremy | | Mahut, Nicolas | | Mannarino, Adrian | | Pouille, Lucas | | Simon, Gilles |
| | Grækenland (1) |
|---|
| Tsitsipas, Stefano |
|
| Ungarn (1) |
|---|
| Fucsovics, Marton |
| | Italien (1) |
|---|
| Cecchinato, Marco |
| | Kasakhstan (2) |
|---|
| Bublik, Alexander | | Kukushkin, Mikhail |
| | Rusland (1) |
|---|
| Medvedev, Daniil |
|
| Slovenien (1) |
|---|
| Bedene, Aljaz |
| | Sydafrika (1) |
|---|
| Anderson, Kevin |
| | Spanien (3) |
|---|
| Carballes Baena, Roberto | | Lopez, Feliciano | | Verdasco, Fernando |
| | Schweizisk (1) |
|---|
| Wawrinka, Stan |
|
| Storbritannien (5) |
|---|
| Clarke, Jay | | Edmund, Kyle | | Evans, Daniel | | Norrie, Cameron | | Ward, James |
| |