| Argentina (2) |
|---|
| Delbonis, Federico | | Etcheverry, Tomas Martin |
| | Østerrike (1) |
|---|
| Thiem, Dominic |
| | | Brasil (1) |
|---|
| Monteiro, Thiago |
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| Chile (2) |
|---|
| Garin, Christian | | Jarry, Nicolas |
| | Tsjekkisk Republikk (2) |
|---|
| Kopriva, Vit | | Lehecka, Jiri |
| | Frankrike (4) |
|---|
| Gasquet, Richard | | Gaston, Hugo | | Moutet, Corentin | | Paire, Benoit |
| | Tyskland (1) |
|---|
| Hanfmann, Yannick |
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| Italia (2) |
|---|
| Berrettini, Matteo | | Sonego, Lorenzo |
| | | Peru (1) |
|---|
| Varillas, Juan Pablo |
| |
| | Spania (7) |
|---|
| Bautista Agut, Roberto | | Carballes Baena, Roberto | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Taberner, Carlos | | Zapata Miralles, Bernabe |
| | Sverige (2) |
|---|
| Ymer, Elias | | Ymer, Mikael |
| | Sveits (3) |
|---|
| Huesler, Marc-Andrea | | Ritschard, Alexander | | Stricker, Dominic |
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