| Argentina (2) |
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| Monaco, Juan | | Schwartzman, Diego |
| | Austria (1) |
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| Haider-Maurer, Andreas |
| | | República Checa (2) |
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| Rosol, Lukas | | Vesely, Jiri |
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| Francia (3) |
|---|
| Chardy, Jeremy | | Paire, Benoit | | Pouille, Lucas |
| | Alemania (3) |
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| Kohlschreiber, Philipp | | Mayer, Florian | | Zverev, Alexander |
| | Italia (3) |
|---|
| Bolelli, Simone | | Fognini, Fabio | | Seppi, Andreas |
| |
| Letonia (1) |
|---|
| Gulbis, Ernests |
| | Polonia (1) |
|---|
| Janowicz, Jerzy |
| | Eslovaquia (1) |
|---|
| Klizan, Martin |
| | Eslovenia (1) |
|---|
| Bedene, Aljaz |
|
| España (11) |
|---|
| Almagro, Nicolas | | Bautista Agut, Roberto | | Cervantes, Inigo | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Montanes, Albert | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
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