| Argentina (1) |
|---|
| Tirante, Thiago Agustin |
| | Bulharsko (1) |
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| Dimitrov, Grigor |
| | | Francie (3) |
|---|
| Halys, Quentin | | Moutet, Corentin | | Muller, Alexandre |
|
| | Itálie (3) |
|---|
| Berrettini, Matteo | | Darderi, Luciano | | Sonego, Lorenzo |
| | Nizozemsko (1) |
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| Griekspoor, Tallon |
| |
| Rusko (2) |
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| Kotov, Pavel | | Rublev, Andrey |
| | Srbsko (2) |
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| Djere, Laslo | | Kecmanovic, Miomir |
| | Španělsko (2) |
|---|
| Davidovich Fokina, Alejandro | | Martinez, Pedro |
| | Švédsko (2) |
|---|
| Borg, Leo | | Ymer, Elias |
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| Švýcarsko (3) |
|---|
| Huesler, Marc-Andrea | | Stricker, Dominic | | Wawrinka, Stan |
| | Velká Británie (2) |
|---|
| Fearnley, Jacob | | Norrie, Cameron |
| | USA (3) |
|---|
| Kovacevic, Aleksandar | | Nakashima, Brandon | | Paul, Tommy |
|