| Austria (1) |
|---|
| Thiem, Dominic |
| | Canada (3) |
|---|
| Andreescu, Bianca | | Raonic, Milos | | Shapovalov, Denis |
| | | Czech Republic (1) |
|---|
| Vondrousova, Marketa |
|
| | Germany (2) |
|---|
| Kohlschreiber, Philipp | | Struff, Jan-Lennard |
| | Japan (1) |
|---|
| Nishioka, Yoshihito |
| | Poland (1) |
|---|
| Hurkacz, Hubert |
|
| Russia (1) |
|---|
| Khachanov, Karen |
| | Serbia (2) |
|---|
| Kecmanovic, Miomir | | Krajinovic, Filip |
| | Spain (2) |
|---|
| Muguruza, Garbiñe | | Nadal, Rafael |
| | Switzerland (1) |
|---|
| Federer, Roger |
|
| Ukraine (1) |
|---|
| Svitolina, Elina |
| | United Kingdom (1) |
|---|
| Edmund, Kyle |
| | United States (1) |
|---|
| Isner, John |
|