| Argentina (8) |
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| Bagnis, Facundo | | Del Potro, Juan Martin | | Delbonis, Federico | | Monaco, Juan | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australia (3) |
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| Kyrgios, Nick | | Thompson, Jordan | | Tomic, Bernard |
| | Østerrike (1) |
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| Thiem, Dominic |
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| | Bosnia og Herzegovina (1) |
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| Dzumhur, Damir |
| | Brasil (2) |
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| Bellucci, Thomaz | | Monteiro, Thiago |
| | Bulgaria (1) |
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| Dimitrov, Grigor |
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| Canada (1) |
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| Pospisil, Vasek |
| | Colombia (1) |
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| Giraldo, Santiago |
| | Kroatia (3) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
| | Tsjekkisk Republikk (2) |
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| Berdych, Tomas | | Vesely, Jiri |
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| Frankrike (10) |
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| Benneteau, Julien | | Chardy, Jeremy | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Tsonga, Jo-Wilfried |
| | Georgia (1) |
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| Basilashvili, Nikoloz |
| | Tyskland (6) |
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| Brown, Dustin | | Gojowczyk, Peter | | Kohlschreiber, Philipp | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
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| Italia (3) |
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| Fognini, Fabio | | Gaio, Federico | | Lorenzi, Paolo |
| | Japan (2) |
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| Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazakhstan (1) |
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| Kukushkin, Mikhail |
| | Luxembourg (1) |
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| Muller, Gilles |
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| | Nederland (1) |
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| Haase, Robin |
| | Portugal (2) |
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| Elias, Gastao | | Sousa, Joao |
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| Russland (6) |
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| Khachanov, Karen | | Kravchuk, Konstantin | | Kuznetsov, Andrey | | Medvedev, Daniil | | Tursunov, Dmitry | | Youzhny, Mikhail |
| | Serbia (3) |
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| Djokovic, Novak | | Lajovic, Dusan | | Troicki, Viktor |
| | Slovakia (1) |
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| Klizan, Martin |
| | Sør-Afrika (1) |
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| Anderson, Kevin |
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| Spania (9) |
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| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
| | | Sveits (3) |
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| Federer, Roger | | Laaksonen, Henri | | Wawrinka, Stan |
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| | Ukraina (1) |
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| Dolgopolov, Alexandr |
| | England (3) |
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| Edmund, Kyle | | Evans, Daniel | | Murray, Andy |
| | Amerika (11) |
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| Fratangelo, Bjorn | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kozlov, Stefan | | Opelka, Reilly | | Querrey, Sam | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
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