| Argentina (7) |
|---|
| Bagnis, Facundo | | Berlocq, Carlos | | Delbonis, Federico | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australien (11) |
|---|
| Bolt, Alex | | De Minaur, Alex | | Duckworth, James | | Groth, Sam | | Jasika, Omar | | Kyrgios, Nick | | Mott, Blake | | O'Connell, Christopher | | Thompson, Jordan | | Tomic, Bernard | | Whittington, Andrew |
| | Østrig (3) |
|---|
| Melzer, Gerald | | Melzer, Jurgen | | Thiem, Dominic |
| | Belgien (2) |
|---|
| Darcis, Steve | | Goffin, David |
|
| Bosnien og Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Brasilien (3) |
|---|
| Bellucci, Thomaz | | Dutra Silva, Rogerio | | Monteiro, Thiago |
| | Bulgarien (1) |
|---|
| Dimitrov, Grigor |
| | Canada (2) |
|---|
| Polansky, Peter | | Raonic, Milos |
|
| Colombia (1) |
|---|
| Giraldo, Santiago |
| | Kroatien (4) |
|---|
| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo |
| | Cypern (1) |
|---|
| Baghdatis, Marcos |
| | Tjekkiet (4) |
|---|
| Berdych, Tomas | | Pavlasek, Adam | | Stepanek, Radek | | Vesely, Jiri |
|
| Den Dominikanske Republik (1) |
|---|
| Estrella Burgos, Victor |
| | Frankrig (13) |
|---|
| Chardy, Jeremy | | Gasquet, Richard | | Halys, Quentin | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (7) |
|---|
| Brown, Dustin | | Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
|
| | Italien (5) |
|---|
| Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas | | Vanni, Luca |
| | Japan (3) |
|---|
| Nishikori, Kei | | Nishioka, Yoshihito | | Soeda, Go |
| | Kasakhstan (2) |
|---|
| Bublik, Alexander | | Kukushkin, Mikhail |
|
| Luxembourg (1) |
|---|
| Muller, Gilles |
| | Mexico (1) |
|---|
| Escobedo, Ernesto |
| | |
| | Portugal (2) |
|---|
| Elias, Gastao | | Sousa, Joao |
| | Rusland (7) |
|---|
| Khachanov, Karen | | Kravchuk, Konstantin | | Kuznetsov, Andrey | | Medvedev, Daniil | | Rublev, Andrey | | Tursunov, Dmitry | | Youzhny, Mikhail |
| | Serbien (3) |
|---|
| Djokovic, Novak | | Lajovic, Dusan | | Troicki, Viktor |
|
| Slovakiet (2) |
|---|
| Klizan, Martin | | Lacko, Lukas |
| | Slovenien (1) |
|---|
| Bedene, Aljaz |
| | | Spanien (10) |
|---|
| Almagro, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
|
| Schweizisk (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| | | Tunesien (1) |
|---|
| Jaziri, Malek |
| | Ukraine (2) |
|---|
| Dolgopolov, Alexandr | | Marchenko, Illya |
|
| Storbritannien (3) |
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| Edmund, Kyle | | Evans, Daniel | | Murray, Andy |
| | USA (13) |
|---|
| Donaldson, Jared | | Fratangelo, Bjorn | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Mmoh, Michael | | Opelka, Reilly | | Querrey, Sam | | Rubin, Noah | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
| | | Usbekistan (1) |
|---|
| Istomin, Denis |
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