| Argentina (6) |
|---|
| Berlocq, Carlos | | Chela, Juan Ignacio | | Del Potro, Juan Martin | | Mayer, Leonardo | | Monaco, Juan | | Nalbandian, David |
| | Australia (3) |
|---|
| Ebden, Matthew | | Matosevic, Marinko | | Tomic, Bernard |
| | Austria (1) |
|---|
| Melzer, Jurgen |
| | Belgium (4) |
|---|
| Bemelmans, Ruben | | Darcis, Steve | | Malisse, Xavier | | Rochus, Olivier |
|
| Brazil (1) |
|---|
| Bellucci, Thomaz |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Canada (3) |
|---|
| Levine, Jesse | | Pospisil, Vasek | | Raonic, Milos |
| | Colombia (2) |
|---|
| Falla, Alejandro | | Giraldo, Santiago |
|
| Croatia (3) |
|---|
| Cilic, Marin | | Dodig, Ivan | | Karlovic, Ivo |
| | Cyprus (1) |
|---|
| Baghdatis, Marcos |
| | Czech Republic (3) |
|---|
| Berdych, Tomas | | Rosol, Lukas | | Stepanek, Radek |
| | Finland (1) |
|---|
| Nieminen, Jarkko |
|
| France (9) |
|---|
| Benneteau, Julien | | Chardy, Jeremy | | Gasquet, Richard | | Llodra, Michael | | Mahut, Nicolas | | Monfils, Gael | | Paire, Benoît | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Germany (5) |
|---|
| Bachinger, Matthias | | Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian | | Stebe, Cedrik-Marcel |
| | | Italy (4) |
|---|
| Cipolla, Flavio | | Lorenzi, Paolo | | Seppi, Andreas | | Starace, Potito |
|
| | Kazakhstan (1) |
|---|
| Golubev, Andrey |
| | Latvia (1) |
|---|
| Gulbis, Ernests |
| | Luxembourg (1) |
|---|
| Muller, Gilles |
|
| Netherlands (1) |
|---|
| Haase, Robin |
| | | Portugal (2) |
|---|
| Gil, Frederico | | Machado, Rui |
| | Russia (4) |
|---|
| Bogomolov Jr., Alex | | Davydenko, Nikolay | | Kunitsyn, Igor | | Tursunov, Dmitry |
|
| Serbia (3) |
|---|
| Djokovic, Novak | | Tipsarevic, Janko | | Troicki, Viktor |
| | South Africa (2) |
|---|
| Anderson, Kevin | | De Voest, Rik |
| | Spain (9) |
|---|
| Almagro, Nicolas | | Andujar, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| | Switzerland (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
|
| | Ukraine (3) |
|---|
| Bubka, Sergei | | Dolgopolov, Alexandr | | Stakhovsky, Sergiy |
| | United Kingdom (1) |
|---|
| Murray, Andy |
| | United States (14) |
|---|
| Delic, Amer | | Fish, Mardy | | Ginepri, Robby | | Harrison, Ryan | | Isner, John | | Kudla, Denis | | Querrey, Sam | | Reynolds, Bobby | | Roddick, Andy | | Smyczek, Tim | | Sock, Jack | | Sweeting, Ryan | | Williams, Rhyne | | Young, Donald |
|
| Uzbekistan (1) |
|---|
| Istomin, Denis |
|