| Argentina (3) |
|---|
| Mayer, Leonardo | | Monaco, Juan | | Schwartzman, Diego |
| | Australia (2) |
|---|
| Kyrgios, Nick | | Tomic, Bernard |
| | Austria (1) |
|---|
| Thiem, Dominic |
| |
| Brazil (1) |
|---|
| Bellucci, Thomaz |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Colombia (1) |
|---|
| Giraldo, Santiago |
| |
| Czech Republic (3) |
|---|
| Berdych, Tomas | | Rosol, Lukas | | Vesely, Jiri |
| | France (5) |
|---|
| Chardy, Jeremy | | Gasquet, Richard | | Mannarino, Adrian | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Germany (2) |
|---|
| Kohlschreiber, Philipp | | Mayer, Florian |
| | Italy (8) |
|---|
| Arnaboldi, Andrea | | Bolelli, Simone | | Donati, Matteo | | Fabbiano, Thomas | | Fognini, Fabio | | Gaio, Federico | | Lorenzi, Paolo | | Vanni, Luca |
|
| | Latvia (1) |
|---|
| Gulbis, Ernests |
| | Poland (1) |
|---|
| Janowicz, Jerzy |
| |
| Serbia (3) |
|---|
| Djokovic, Novak | | Lajovic, Dusan | | Troicki, Viktor |
| | Slovakia (1) |
|---|
| Klizan, Martin |
| | South Africa (1) |
|---|
| Anderson, Kevin |
| | Spain (7) |
|---|
| Almagro, Nicolas | | Bautista Agut, Roberto | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael |
|
| Switzerland (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| | | Ukraine (1) |
|---|
| Dolgopolov, Alexandr |
| | United Kingdom (1) |
|---|
| Murray, Andy |
|
| United States (5) |
|---|
| Isner, John | | Johnson, Steve | | Querrey, Sam | | Sock, Jack | | Young, Donald |
| |