| Australië (2) |
|---|
| Millman, John | | O'Connell, Christopher |
| | Oostenrijk (1) |
|---|
| Thiem, Dominic |
| | | Canada (2) |
|---|
| Pospisil, Vasek | | Shapovalov, Denis |
|
| | Frankrijk (2) |
|---|
| Chardy, Jeremy | | Gasquet, Richard |
| | Georgië (1) |
|---|
| Basilashvili, Nikoloz |
| | Hongarije (1) |
|---|
| Fucsovics, Marton |
|
| India (1) |
|---|
| Ramanathan, Ramkumar |
| | Italië (1) |
|---|
| Sonego, Lorenzo |
| | Kazachstan (1) |
|---|
| Bublik, Alexander |
| | Qatar (1) |
|---|
| Zayid, Mubarak Shannan |
|
| Rusland (2) |
|---|
| Karatsev, Aslan | | Rublev, Andrey |
| | Servië (2) |
|---|
| Krajinovic, Filip | | Lajovic, Dusan |
| | Slowakije (1) |
|---|
| Gombos, Norbert |
| |
| Zuid-Afrika (1) |
|---|
| Harris, Lloyd |
| | Spanje (1) |
|---|
| Bautista Agut, Roberto |
| | Zwitserland (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| |
| Verenigd Koninkrijk (1) |
|---|
| Evans, Daniel |
| | Verenigde Staten (2) |
|---|
| Fritz, Taylor | | Opelka, Reilly |
|