| Argentina (6) |
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| Delbonis, Federico | | Mayer, Leonardo | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco |
| | Austrálie (9) |
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| Duckworth, James | | Ebden, Matthew | | Groth, Sam | | Hewitt, Lleyton | | Jasika, Omar | | Kyrgios, Nick | | Millman, John | | Thompson, Jordan | | Tomic, Bernard |
| | Rakousko (1) |
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| Thiem, Dominic |
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| Darcis, Steve | | Goffin, David |
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| Bosna a Hercegovina (2) |
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| Basic, Mirza | | Dzumhur, Damir |
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| Bellucci, Thomaz |
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| Dimitrov, Grigor |
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| Pospisil, Vasek | | Raonic, Milos |
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| Giraldo, Santiago |
| | Chorvatsko (4) |
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| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo |
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| Baghdatis, Marcos |
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| Česká republika (4) |
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| Berdych, Tomas | | Rosol, Lukas | | Stepanek, Radek | | Vesely, Jiri |
| | Dominikánská republika (1) |
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| Estrella Burgos, Victor |
| | Francie (13) |
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| Benneteau, Julien | | Chardy, Jeremy | | Halys, Quentin | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Gruzie (1) |
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| Basilashvili, Nikoloz |
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| Německo (5) |
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| Becker, Benjamin | | Brands, Daniel | | Gojowczyk, Peter | | Kohlschreiber, Philipp | | Zverev, Alexander |
| | | | Itálie (5) |
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| Bolelli, Simone | | Cecchinato, Marco | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas |
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| Japonsko (5) |
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| Daniel, Taro | | Ito, Tatsuma | | Nishikori, Kei | | Nishioka, Yoshihito | | Sugita, Yuichi |
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| Kukushkin, Mikhail |
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| Muller, Gilles |
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| Bakker, Thiemo de | | Haase, Robin |
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| Janowicz, Jerzy |
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| Sousa, Joao |
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| Rusko (4) |
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| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Kuznetsov, Andrey | | Tursunov, Dmitry |
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| Djokovic, Novak | | Krajinovic, Filip | | Lajovic, Dusan | | Troicki, Viktor |
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| Klizan, Martin | | Kovalik, Jozef |
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| Bedene, Aljaz |
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| Anderson, Kevin |
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| Chung, Hyeon |
| | Španělsko (15) |
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| Almagro, Nicolas | | Andujar, Pablo | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Lopez, Feliciano | | Muñoz de la Nava, Daniel | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
| | Švýcarsko (2) |
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| Federer, Roger | | Wawrinka, Stan |
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| | Ukrajina (3) |
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| Dolgopolov, Alexandr | | Marchenko, Illya | | Stakhovsky, Sergiy |
| | Velká Británie (3) |
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| Edmund, Kyle | | Evans, Daniel | | Murray, Andy |
| | USA (14) |
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| Baker, Brian | | Fratangelo, Bjorn | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Krajicek, Austin | | Kudla, Denis | | Querrey, Sam | | Ram, Rajeev | | Rubin, Noah | | Smyczek, Tim | | Sock, Jack | | Young, Donald |
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| | Uzbekistán (1) |
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| Istomin, Denis |
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