| Argentína (7) |
|---|
| Berlocq, Carlos | | Del Potro, Juan Martin | | Kicker, Nicolas | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Austrália (7) |
|---|
| De Minaur, Alex | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Millman, John | | Smith, John-Patrick | | Thompson, Jordan | | Tomic, Bernard |
| | Rakúsko (2) |
|---|
| Haider-Maurer, Andreas | | Thiem, Dominic |
| |
| Belgicko (3) |
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| Bemelmans, Ruben | | Darcis, Steve | | Goffin, David |
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| Dzumhur, Damir |
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| Bellucci, Thomaz | | Dutra Silva, Rogerio | | Monteiro, Thiago |
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| Dimitrov, Grigor |
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| Kanada (2) |
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| Pospisil, Vasek | | Shapovalov, Denis |
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| Giraldo, Santiago |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
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| Baghdatis, Marcos |
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| Česká republika (3) |
|---|
| Berdych, Tomas | | Safranek, Vaclav | | Vesely, Jiri |
| | Francúzsko (13) |
|---|
| Benneteau, Julien | | Blancaneaux, Geoffrey | | Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Millot, Vincent | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Gruzínsko (1) |
|---|
| Basilashvili, Nikoloz |
| | Nemecko (8) |
|---|
| Brown, Dustin | | Kohlschreiber, Philipp | | Marterer, Maximilian | | Mayer, Florian | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
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| Maďarsko (1) |
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| Fucsovics, Marton |
| | | Taliansko (6) |
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| Fabbiano, Thomas | | Fognini, Fabio | | Giannessi, Alessandro | | Lorenzi, Paolo | | Seppi, Andreas | | Travaglia, Stefano |
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| Daniel, Taro | | Sugita, Yuichi |
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| Kukushkin, Mikhail |
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| Berankis, Ricardas |
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| Muller, Gilles |
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| Escobedo, Ernesto |
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| Sousa, Joao |
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| Copil, Marius |
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| Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsov, Andrey | | Medvedev, Daniil | | Rublev, Andrey | | Tursunov, Dmitry | | Youzhny, Mikhail |
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| Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
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| Gombos, Norbert | | Lacko, Lukas |
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| Bedene, Aljaz | | Kavcic, Blaz |
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| Anderson, Kevin |
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| Chung, Hyeon |
| | Španielsko (9) |
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| Almagro, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Lopez, Feliciano | | Menendez-Maceiras, Adrian | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
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| Švajčiarsko (2) |
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| Federer, Roger | | Laaksonen, Henri |
| | | | Ukrajina (1) |
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| Dolgopolov, Alexandr |
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| Veľká Británia (2) |
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| Edmund, Kyle | | Norrie, Cameron |
| | USA (18) |
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| Aragone, JC | | Donaldson, Jared | | Eubanks, Christopher | | Fratangelo, Bjorn | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | King, Evan | | Kwiatkowski, Thai-Son | | Kypson, Patrick | | Paul, Tommy | | Querrey, Sam | | Sandgren, Tennys | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
| | | Uzbekistan (1) |
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| Istomin, Denis |
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