| Argentina (2) |
|---|
| Mayer, Leonardo | | Monaco, Juan |
| | Australien (2) |
|---|
| Kyrgios, Nick | | Matosevic, Marinko |
| | | Brasilien (2) |
|---|
| Bellucci, Thomaz | | Souza, Joao |
|
| Colombia (2) |
|---|
| Giraldo, Santiago | | Gonzalez, Alejandro |
| | | Den Dominikanske Republik (1) |
|---|
| Estrella Burgos, Victor |
| | Frankrig (3) |
|---|
| De Schepper, Kenny | | Paire, Benoit | | Tsonga, Jo-Wilfried |
|
| Tyskland (2) |
|---|
| Kohlschreiber, Philipp | | Struff, Jan-Lennard |
| | Ungarn (1) |
|---|
| Fucsovics, Marton |
| | Italien (2) |
|---|
| Fognini, Fabio | | Lorenzi, Paolo |
| | Japan (2) |
|---|
| Nishikori, Kei | | Sugita, Yuichi |
|
| Kasakhstan (1) |
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| Kukushkin, Mikhail |
| | Letland (1) |
|---|
| Gulbis, Ernests |
| | Litauen (1) |
|---|
| Berankis, Ricardas |
| | Holland (1) |
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| Bakker, Thiemo de |
|
| | Rusland (3) |
|---|
| Gabashvili, Teymuraz | | Kuznetsov, Andrey | | Rublev, Andrey |
| | Slovakiet (1) |
|---|
| Klizan, Martin |
| | Spanien (14) |
|---|
| Almagro, Nicolas | | Andujar, Pablo | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Granollers, Marcel | | Lopez, Feliciano | | Montanes, Albert | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
|
| | | Storbritannien (1) |
|---|
| Ward, James |
| |