| Argentinië (8) |
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| Bagnis, Facundo | | Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Monaco, Juan | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australië (7) |
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| Barton, Matthew | | Groth, Sam | | Kyrgios, Nick | | Millman, John | | Saville, Luke | | Thompson, Jordan | | Tomic, Bernard |
| | Oostenrijk (1) |
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| Thiem, Dominic |
| | België (2) |
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| Bemelmans, Ruben | | 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 (5) |
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| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo | | Skugor, Franko |
| | Cyprus (1) |
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| Baghdatis, Marcos |
| | Tsjechië (4) |
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| Berdych, Tomas | | 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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| Benneteau, Julien | | Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Lamasine, Tristan | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Monfils, Gael | | Olivetti, Albano | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Roger-Vasselin, Edouard | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Duitsland (6) |
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| Becker, Benjamin | | Brown, Dustin | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander |
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| Italië (3) |
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| Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas |
| | Japan (3) |
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| Daniel, Taro | | Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazachstan (1) |
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| Kukushkin, Mikhail |
| | Letland (1) |
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| Gulbis, Ernests |
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| Litouwen (1) |
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| Berankis, Ricardas |
| | Luxemburg (1) |
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| Muller, Gilles |
| | | Nederland (2) |
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| Haase, Robin | | Sijsling, Igor |
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| Portugal (2) |
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| Elias, Gastao | | Sousa, Joao |
| | Roemenië (1) |
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| Copil, Marius |
| | Rusland (6) |
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| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Kudryavtsev, Alexander | | Kuznetsov, Andrey | | Tursunov, Dmitry | | Youzhny, Mikhail |
| | Servië (4) |
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| Djokovic, Novak | | Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
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| Slowakije (2) |
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| Klizan, Martin | | Lacko, Lukas |
| | Slovenië (1) |
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| Bedene, Aljaz |
| | Zuid-Afrika (1) |
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| Anderson, Kevin |
| | Spanje (11) |
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| Almagro, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Montanes, Albert | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
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| Zwitserland (2) |
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| Federer, Roger | | Wawrinka, Stan |
| | | | Oekraïne (3) |
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| Dolgopolov, Alexandr | | Marchenko, Illya | | Stakhovsky, Sergiy |
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| Verenigd Koninkrijk (8) |
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| Broady, Liam | | Edmund, Kyle | | Evans, Daniel | | Klein, Brydan | | Murray, Andy | | Ward, Alex | | Ward, James | | Willis, Marcus |
| | Verenigde Staten (11) |
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| Baker, Brian | | Fratangelo, Bjorn | | Fritz, Taylor | | Isner, John | | Johnson, Steve | | Kudla, Denis | | Novikov, Dennis | | Querrey, Sam | | Ram, Rajeev | | Sock, Jack | | Young, Donald |
| | | Oezbekistan (1) |
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| Istomin, Denis |
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