| Argentinië (9) |
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| Bagnis, Facundo | | Berlocq, Carlos | | Delbonis, Federico | | Mayer, Leonardo | | Monaco, Juan | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco | | Zeballos, Horacio |
| | Australië (5) |
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| Groth, Sam | | Kyrgios, Nick | | Millman, John | | Thompson, Jordan | | Tomic, Bernard |
| | Oostenrijk (2) |
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| Melzer, Gerald | | 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 |
| | Brazilië (2) |
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| Bellucci, Thomaz | | Dutra Silva, Rogerio |
| | Bulgarije (1) |
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| Dimitrov, Grigor |
| | Canada (2) |
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| Pospisil, Vasek | | Raonic, Milos |
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| Colombia (1) |
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| Giraldo, Santiago |
| | Kroatië (4) |
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| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo |
| | Cyprus (1) |
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| Baghdatis, Marcos |
| | Tsjechië (5) |
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| Berdych, Tomas | | Pavlasek, Adam | | Rosol, Lukas | | Stepanek, Radek | | Vesely, Jiri |
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| Dominicaanse Republiek (1) |
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| Estrella Burgos, Victor |
| | Frankrijk (16) |
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| Barrere, Gregoire | | Benneteau, Julien | | Bourgue, Mathias | | Chardy, Jeremy | | De Schepper, Kenny | | Gasquet, Richard | | Halys, Quentin | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgië (1) |
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| Basilashvili, Nikoloz |
| | Duitsland (7) |
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| Becker, Benjamin | | Brown, Dustin | | Kamke, Tobias | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander |
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| | Italië (6) |
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| Bolelli, Simone | | Cecchinato, Marco | | Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas |
| | Japan (2) |
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| Daniel, Taro | | Nishikori, Kei |
| | Kazachstan (1) |
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| Kukushkin, Mikhail |
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| Letland (1) |
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| Gulbis, Ernests |
| | Litouwen (1) |
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| Berankis, Ricardas |
| | Luxemburg (1) |
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| Muller, Gilles |
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| Nederland (3) |
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| Bakker, Thiemo de | | Haase, Robin | | Sijsling, Igor |
| | | Roemenië (1) |
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| Ungur, Adrian |
| | Rusland (5) |
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| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Kuznetsov, Andrey | | Tursunov, Dmitry | | Youzhny, Mikhail |
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| Servië (5) |
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| Djere, Laslo | | Djokovic, Novak | | Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
| | Slowakije (2) |
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| Klizan, Martin | | Martin, Andrej |
| | Slovenië (1) |
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| Bedene, Aljaz |
| | Zuid-Afrika (1) |
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| Anderson, Kevin |
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| Zuid-Korea (1) |
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| Chung, Hyeon |
| | Spanje (15) |
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| Almagro, Nicolas | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Montanes, Albert | | Muñoz de la Nava, Daniel | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Samper-Montana, Jordi | | Verdasco, Fernando |
| | Zwitserland (1) |
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| Wawrinka, Stan |
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| | | Oekraïne (1) |
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| Marchenko, Illya |
| | Verenigd Koninkrijk (2) |
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| Edmund, Kyle | | Murray, Andy |
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| Verenigde Staten (10) |
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| Baker, Brian | | Fratangelo, Bjorn | | Fritz, Taylor | | Isner, John | | Johnson, Steve | | Kudla, Denis | | Querrey, Sam | | Ram, Rajeev | | Sock, Jack | | Young, Donald |
| | | Oezbekistan (1) |
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| Istomin, Denis |
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