| Argentina (4) |
|---|
| Berlocq, Carlos | | Del Potro, Juan Martin | | Monaco, Juan | | Nalbandian, David |
| | Australia (3) |
|---|
| Hewitt, Lleyton | | Matosevic, Marinko | | Tomic, Bernard |
| | Austria (1) |
|---|
| Melzer, Jurgen |
| | Canada (2) |
|---|
| Levine, Jesse | | Raonic, Milos |
|
| Colombia (2) |
|---|
| Falla, Alejandro | | Giraldo, Santiago |
| | Croatia (2) |
|---|
| Cilic, Marin | | Dodig, Ivan |
| | Cyprus (1) |
|---|
| Baghdatis, Marcos |
| | Czech Republic (2) |
|---|
| Berdych, Tomas | | Stepanek, Radek |
|
| Finland (1) |
|---|
| Nieminen, Jarkko |
| | France (4) |
|---|
| Benneteau, Julien | | Chardy, Jeremy | | Gasquet, Richard | | Mathieu, Paul-Henri |
| | Germany (3) |
|---|
| Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian |
| | Italy (2) |
|---|
| Fognini, Fabio | | Seppi, Andreas |
|
| | Netherlands (1) |
|---|
| Haase, Robin |
| | | Russia (3) |
|---|
| Bogomolov Jr., Alex | | Davydenko, Nikolay | | Youzhny, Mikhail |
|
| Serbia (3) |
|---|
| Djokovic, Novak | | Tipsarevic, Janko | | Troicki, Viktor |
| | South Africa (1) |
|---|
| Anderson, Kevin |
| | Spain (5) |
|---|
| Andujar, Pablo | | Ferrer, David | | Granollers, Marcel | | Lopez, Feliciano | | Ramos-Vinolas, Albert |
| | Switzerland (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
|
| | Ukraine (2) |
|---|
| Dolgopolov, Alexandr | | Stakhovsky, Sergiy |
| | United Kingdom (1) |
|---|
| Murray, Andy |
| | United States (7) |
|---|
| Baker, Brian | | Blake, James | | Fish, Mardy | | Harrison, Ryan | | Querrey, Sam | | Roddick, Andy | | Young, Donald |
|
| Uzbekistan (1) |
|---|
| Istomin, Denis |
|