| Argentinië (4) |
|---|
| Berlocq, Carlos | | Delbonis, Federico | | Olivo, Renzo | | Schwartzman, Diego |
| | Australië (1) |
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| Tomic, Bernard |
| | Oostenrijk (1) |
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| Thiem, Dominic |
| | België (2) |
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| Darcis, Steve | | Goffin, David |
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| Bosnië-Herzegovina (1) |
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| Dzumhur, Damir |
| | Bulgarije (1) |
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| Dimitrov, Grigor |
| | Kroatië (2) |
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| Cilic, Marin | | Coric, Borna |
| | Tsjechië (2) |
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| Berdych, Tomas | | Vesely, Jiri |
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| Frankrijk (8) |
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| Chardy, Jeremy | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgië (1) |
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| Basilashvili, Nikoloz |
| | Duitsland (6) |
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| Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
| | Italië (3) |
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| Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas |
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| Luxemburg (1) |
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| Muller, Gilles |
| | Nederland (1) |
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| Haase, Robin |
| | Noorwegen (1) |
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| Ruud, Casper |
| |
| Rusland (3) |
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| Khachanov, Karen | | Kuznetsov, Andrey | | Medvedev, Daniil |
| | Servië (2) |
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| Djokovic, Novak | | Troicki, Viktor |
| | Slowakije (1) |
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| Klizan, Martin |
| | Spanje (9) |
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| Almagro, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy |
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| Zwitserland (1) |
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| Wawrinka, Stan |
| | | Verenigd Koninkrijk (3) |
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| Edmund, Kyle | | Evans, Daniel | | Murray, Andy |
| | Verenigde Staten (1) |
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| Harrison, Ryan |
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