| Argentinië (4) |
|---|
| Berlocq, Carlos | | Delbonis, Federico | | Mayer, Leonardo | | Monaco, Juan |
| | Oostenrijk (1) |
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| Thiem, Dominic |
| | Brazilië (1) |
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| Bellucci, Thomaz |
| | Colombia (1) |
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| Giraldo, Santiago |
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| | Tsjechië (2) |
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| Rosol, Lukas | | Vesely, Jiri |
| | Finland (1) |
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| Nieminen, Jarkko |
| | Frankrijk (3) |
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| De Schepper, Kenny | | Paire, Benoît | | Simon, Gilles |
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| Duitsland (7) |
|---|
| Brown, Dustin | | Gojowczyk, Peter | | Kamke, Tobias | | Kohlschreiber, Philipp | | Reister, Julian | | Struff, Jan-Lennard | | Zverev, Alexander |
| | Italië (2) |
|---|
| Fognini, Fabio | | Seppi, Andreas |
| | Kazachstan (2) |
|---|
| Golubev, Andrey | | Kukushkin, Mikhail |
| | Nederland (2) |
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| Haase, Robin | | Sijsling, Igor |
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| | Portugal (2) |
|---|
| Elias, Gastao | | Sousa, Joao |
| | Rusland (2) |
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| Gabashvili, Teymuraz | | Youzhny, Mikhail |
| | Servië (2) |
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| Krajinovic, Filip | | Lajovic, Dusan |
|
| Slowakije (1) |
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| Klizan, Martin |
| | Spanje (11) |
|---|
| Andujar, Pablo | | Carreño Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Montanes, Albert | | Ramos-Vinolas, Albert | | Riba, Pere | | Robredo, Tommy | | Verdasco, Fernando |
| | | Oekraïne (1) |
|---|
| Dolgopolov, Alexandr |
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