| Argentinien (1) |
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| Schwartzman, Diego |
| | Australien (2) |
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| Kyrgios, Nick | | Tomic, Bernard |
| | Österreich (1) |
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| Thiem, Dominic |
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| Brasilien (1) |
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| Bellucci, Thomaz |
| | Bulgarien (1) |
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| Dimitrov, Grigor |
| | | Kroatien (3) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
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| Zypern (1) |
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| Baghdatis, Marcos |
| | Tschechien (1) |
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| Berdych, Tomas |
| | Frankreich (8) |
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| Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Deutschland (5) |
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| Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian | | Zverev, Alexander | | Zverev, Mischa |
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| Italien (1) |
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| Fognini, Fabio |
| | | Kasachstan (1) |
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| Kukushkin, Mikhail |
| | Luxemburg (1) |
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| Muller, Gilles |
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| Mexiko (1) |
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| Escobedo, Ernesto |
| | Die Niederlande (1) |
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| Haase, Robin |
| | | Rumänien (1) |
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| Copil, Marius |
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| Russland (2) |
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| Khachanov, Karen | | Kuznetsov, Andrey |
| | Serbien (1) |
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| Djokovic, Novak |
| | Spanien (11) |
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| Almagro, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
| | Schweiz (1) |
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| Wawrinka, Stan |
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| Groß Britannien (2) |
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| Evans, Daniel | | Murray, Andy |
| | Vereinigte Staaten (3) |
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| Donaldson, Jared | | Harrison, Ryan | | Sock, Jack |
| | | Usbekistan (1) |
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| Istomin, Denis |
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