| Argentina (1) |
|---|
| Delbonis, Federico |
| | Australien (2) |
|---|
| Duckworth, James | | Millman, John |
| | Hviderusland (2) |
|---|
| Gerasimov, Egor | | Ivashka, Ilya |
| | Canada (1) |
|---|
| Shapovalov, Denis |
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| Kroatien (2) |
|---|
| Cilic, Marin | | Serdarusic, Nino |
| | Finland (1) |
|---|
| Ruusuvuori, Emil |
| | Frankrig (1) |
|---|
| Mannarino, Adrian |
| | Tyskland (1) |
|---|
| Struff, Jan-Lennard |
|
| | Japan (1) |
|---|
| Nishioka, Yoshihito |
| | Kasakhstan (1) |
|---|
| Bublik, Alexander |
| | Holland (1) |
|---|
| Zandschulp, Botic van de |
|
| Rusland (4) |
|---|
| Karatsev, Aslan | | Khachanov, Karen | | Rublev, Andrey | | Tiurnev, Evgenii |
| | | Spanien (4) |
|---|
| Andujar, Pablo | | Bautista Agut, Roberto | | Martinez, Pedro | | Ramos-Vinolas, Albert |
| | USA (4) |
|---|
| Fritz, Taylor | | Korda, Sebastian | | McDonald, Mackenzie | | Paul, Tommy |
|