| Argentina (7) |
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| Arguello, Facundo | | Berlocq, Carlos | | Delbonis, Federico | | Gonzalez, Maximo | | Mayer, Leonardo | | Monaco, Juan | | Schwartzman, Diego |
| | Austrálie (6) |
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| Duckworth, James | | Groth, Sam | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Matosevic, Marinko | | Tomic, Bernard |
| | Rakousko (3) |
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| Haider-Maurer, Andreas | | Melzer, Jurgen | | Thiem, Dominic |
| | Belgie (5) |
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| Bemelmans, Ruben | | Coppejans, Kimmer | | Darcis, Steve | | Gigounon, Germain | | Goffin, David |
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| Bosna a Hercegovina (1) |
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| Dzumhur, Damir |
| | Brazílie (2) |
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| Bellucci, Thomaz | | Souza, Joao |
| | Bulharsko (1) |
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| Dimitrov, Grigor |
| | Kanada (1) |
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| Pospisil, Vasek |
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| Kolumbie (2) |
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| Falla, Alejandro | | Giraldo, Santiago |
| | Chorvatsko (4) |
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| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo |
| | Kypr (1) |
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| Baghdatis, Marcos |
| | Česká republika (4) |
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| Berdych, Tomas | | Rosol, Lukas | | Stepanek, Radek | | Vesely, Jiri |
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| Dominikánská republika (1) |
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| Estrella Burgos, Victor |
| | Finsko (1) |
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| Nieminen, Jarkko |
| | Francie (14) |
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| Chardy, Jeremy | | Gasquet, Richard | | Halys, Quentin | | Hamou, Maxime | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Roger-Vasselin, Edouard | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Gruzie (1) |
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| Basilashvili, Nikoloz |
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| Německo (6) |
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| Bachinger, Matthias | | Becker, Benjamin | | Berrer, Michael | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard |
| | | Itálie (6) |
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| Arnaboldi, Andrea | | Bolelli, Simone | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas | | Vanni, Luca |
| | Japonsko (5) |
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| Daniel, Taro | | Ito, Tatsuma | | Nishikori, Kei | | Nishioka, Yoshihito | | Soeda, Go |
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| Kazachstán (2) |
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| Golubev, Andrey | | Kukushkin, Mikhail |
| | Lotyšsko (1) |
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| Gulbis, Ernests |
| | Litva (1) |
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| Berankis, Ricardas |
| | Lucembursko (1) |
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| Muller, Gilles |
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| Nizozemsko (2) |
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| Haase, Robin | | Sijsling, Igor |
| | Polsko (1) |
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| Janowicz, Jerzy |
| | Portugalsko (2) |
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| Elias, Gastao | | Sousa, Joao |
| | Rusko (3) |
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| Gabashvili, Teymuraz | | Kuznetsov, Andrey | | Youzhny, Mikhail |
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| Srbsko (4) |
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| Djokovic, Novak | | Krajinovic, Filip | | Lajovic, Dusan | | Troicki, Viktor |
| | Slovensko (2) |
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| Klizan, Martin | | Lacko, Lukas |
| | Slovinsko (2) |
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| Bedene, Aljaz | | Kavcic, Blaz |
| | Jihoafrická republika (1) |
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| Anderson, Kevin |
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| Španělsko (13) |
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| Almagro, Nicolas | | Andujar, Pablo | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
| | Švédsko (2) |
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| Lindell, Christian | | Ymer, Elias |
| | Švýcarsko (2) |
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| Federer, Roger | | Wawrinka, Stan |
| | Tchaj-wan (1) |
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| Lu, Yen-Hsun |
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| | | Ukrajina (3) |
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| Dolgopolov, Alexandr | | Marchenko, Illya | | Stakhovsky, Sergiy |
| | Velká Británie (2) |
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| Edmund, Kyle | | Murray, Andy |
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| USA (7) |
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| Isner, John | | Johnson, Steve | | Querrey, Sam | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
| | | Uzbekistán (1) |
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| Istomin, Denis |
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