| Argentina (6) |
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| Bagnis, Facundo | | Delbonis, Federico | | Mayer, Leonardo | | Monaco, Juan | | Schwartzman, Diego | | Zeballos, Horacio |
| | Austrália (11) |
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| Duckworth, James | | Ebden, Matthew | | Groth, Sam | | Hewitt, Lleyton | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Matosevic, Marinko | | Millman, John | | Saville, Luke | | Smith, John-Patrick | | Tomic, Bernard |
| | Áustria (2) |
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| Haider-Maurer, Andreas | | Thiem, Dominic |
| | Bélgica (3) |
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| Bemelmans, Ruben | | Darcis, Steve | | Goffin, David |
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| Bósnia Herzegovina (1) |
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| Dzumhur, Damir |
| | Brasil (2) |
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| Bellucci, Thomaz | | Souza, Joao |
| | Bulgária (1) |
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| Dimitrov, Grigor |
| | Canadá (2) |
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| Pospisil, Vasek | | Raonic, Milos |
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| Colômbia (2) |
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| Falla, Alejandro | | Giraldo, Santiago |
| | Croácia (3) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
| | Chipre (1) |
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| Baghdatis, Marcos |
| | República Checa (4) |
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| Berdych, Tomas | | Rosol, Lukas | | Stepanek, Radek | | Vesely, Jiri |
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| República Dominicana (1) |
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| Estrella Burgos, Victor |
| | Finlândia (1) |
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| Nieminen, Jarkko |
| | França (12) |
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| Chardy, Jeremy | | De Schepper, Kenny | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Millot, Vincent | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Geórgia (1) |
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| Basilashvili, Nikoloz |
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| Alemanha (8) |
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| Becker, Benjamin | | Berrer, Michael | | Brown, Dustin | | Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander |
| | | Itália (5) |
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| Bolelli, Simone | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas | | Vanni, Luca |
| | Japão (4) |
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| Moriya, Hiroki | | Nishikori, Kei | | Soeda, Go | | Sugita, Yuichi |
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| Cazaquistão (1) |
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| Kukushkin, Mikhail |
| | Letónia (1) |
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| Gulbis, Ernests |
| | Lituânia (1) |
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| Berankis, Ricardas |
| | Luxemburgo (1) |
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| Muller, Gilles |
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| Holanda (2) |
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| Haase, Robin | | Sijsling, Igor |
| | Polónia (1) |
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| Janowicz, Jerzy |
| | | Rússia (2) |
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| Gabashvili, Teymuraz | | Youzhny, Mikhail |
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| Sérvia (5) |
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| Djokovic, Novak | | Krajinovic, Filip | | Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
| | Eslováquia (2) |
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| Klizan, Martin | | Lacko, Lukas |
| | Eslovénia (3) |
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| Bedene, Aljaz | | Kavcic, Blaz | | Rola, Blaz |
| | África do Sul (1) |
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| Anderson, Kevin |
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| Coreia do Sul (1) |
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| Chung, Hyeon |
| | Espanha (12) |
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| Almagro, Nicolas | | Andujar, Pablo | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
| | | Suíça (2) |
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| Federer, Roger | | Wawrinka, Stan |
|
| | | | Ucrânia (3) |
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| Dolgopolov, Alexandr | | Nedovyesov, Aleksandr | | Stakhovsky, Sergiy |
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| Reino Unido (5) |
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| Broady, Liam | | Edmund, Kyle | | Klein, Brydan | | Murray, Andy | | Ward, James |
| | Estados Unidos (7) |
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| Isner, John | | Johnson, Steve | | Kudla, Denis | | Querrey, Sam | | Smyczek, Tim | | Sock, Jack | | Young, Donald |
| | | Uzbequistão (1) |
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| Istomin, Denis |
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