| Argentinië (2) |
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| Etcheverry, Tomas Martin | | Schwartzman, Diego |
| | Oostenrijk (1) |
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| Thiem, Dominic |
| | Brazilië (1) |
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| Monteiro, Thiago |
| | Canada (1) |
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| Pospisil, Vasek |
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| | Finland (1) |
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| Ruusuvuori, Emil |
| | Frankrijk (4) |
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| Grenier, Hugo | | Lestienne, Constant | | Mannarino, Adrian | | Rinderknech, Arthur |
| | Israël (2) |
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| Leshem, Edan | | Oliel, Yshai |
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| Nederland (2) |
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| Griekspoor, Tallon | | Zandschulp, Botic van de |
| | | Roemenië (1) |
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| Copil, Marius |
| | Rusland (2) |
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| Karatsev, Aslan | | Safiullin, Roman |
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| Servië (3) |
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| Djere, Laslo | | Djokovic, Novak | | Medjedovic, Hamad |
| | | | Verenigd Koninkrijk (1) |
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| Broady, Liam |
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| Verenigde Staten (3) |
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| Cressy, Maxime | | Korda, Sebastian | | Wolf, J.J. |
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