| Argentina (1) |
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| Mayer, Leonardo |
| | Australia (3) |
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| Kokkinakis, Thanasi | | Kyrgios, Nick | | Tomic, Bernard |
| | Austria (1) |
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| Thiem, Dominic |
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| Brazil (1) |
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| Bellucci, Thomaz |
| | Bulgaria (1) |
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| Dimitrov, Grigor |
| | Canada (2) |
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| Pospisil, Vasek | | Raonic, Milos |
| | Croatia (3) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
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| Czech Republic (3) |
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| Berdych, Tomas | | Rosol, Lukas | | Vesely, Jiri |
| | France (8) |
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| Chardy, Jeremy | | Gasquet, Richard | | Mahut, Nicolas | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Germany (2) |
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| Kohlschreiber, Philipp | | Zverev, Alexander |
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| Fognini, Fabio | | Seppi, Andreas |
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| Muller, Gilles |
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| Janowicz, Jerzy |
| | | Serbia (2) |
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| Djokovic, Novak | | Troicki, Viktor |
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| Slovakia (1) |
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| Klizan, Martin |
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| Anderson, Kevin |
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| Andujar, Pablo | | Bautista Agut, Roberto | | Lopez, Feliciano | | Nadal, Rafael | | Robredo, Tommy | | Verdasco, Fernando |
| | Switzerland (2) |
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| Federer, Roger | | Wawrinka, Stan |
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| | Ukraine (2) |
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| Dolgopolov, Alexandr | | Stakhovsky, Sergiy |
| | United Kingdom (1) |
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| Murray, Andy |
| | United States (8) |
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| Donaldson, Jared | | Fish, Mardy | | Fratangelo, Bjorn | | Isner, John | | Kudla, Denis | | Querrey, Sam | | Ram, Rajeev | | Sock, Jack |
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