| Argentina (7) |
|---|
| Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Monaco, Juan | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australia (3) |
|---|
| Groth, Sam | | Kyrgios, Nick | | Millman, John |
| | Austria (1) |
|---|
| Thiem, Dominic |
| |
| Bosnia-Erzegovina (1) |
|---|
| Dzumhur, Damir |
| | Brasile (2) |
|---|
| Bellucci, Thomaz | | Dutra Silva, Rogerio |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Canada (2) |
|---|
| Pospisil, Vasek | | Raonic, Milos |
|
| | Colombia (2) |
|---|
| Giraldo, Santiago | | Gonzalez, Alejandro |
| | Croazia (3) |
|---|
| Cilic, Marin | | Coric, Borna | | Dodig, Ivan |
| | Cipro (1) |
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| Baghdatis, Marcos |
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| Repubblica Ceca (3) |
|---|
| Berdych, Tomas | | Rosol, Lukas | | Vesely, Jiri |
| | Repubblica Dominicana (1) |
|---|
| Estrella Burgos, Victor |
| | Francia (11) |
|---|
| Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Germania (2) |
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| Becker, Benjamin | | Zverev, Alexander |
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| Italia (2) |
|---|
| Bolelli, Simone | | Seppi, Andreas |
| | Giappone (3) |
|---|
| Ito, Tatsuma | | Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazakistan (1) |
|---|
| Kukushkin, Mikhail |
| | Lettonia (1) |
|---|
| Gulbis, Ernests |
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| Lussemburgo (1) |
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| Muller, Gilles |
| | Portogallo (1) |
|---|
| Sousa, Joao |
| | Russia (5) |
|---|
| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Kuznetsov, Andrey | | Rublev, Andrey | | Youzhny, Mikhail |
| | Serbia (3) |
|---|
| Djokovic, Novak | | Lajovic, Dusan | | Troicki, Viktor |
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| Slovenia (1) |
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| Bedene, Aljaz |
| | Corea del Sud (1) |
|---|
| Chung, Hyeon |
| | Spagna (11) |
|---|
| Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| |
| Svizzera (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| | Ucraina (3) |
|---|
| Dolgopolov, Alexandr | | Marchenko, Illya | | Stakhovsky, Sergiy |
| | Regno Unito (2) |
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| Edmund, Kyle | | Murray, Andy |
| | Stati Uniti (15) |
|---|
| Baker, Brian | | Donaldson, Jared | | Fratangelo, Bjorn | | Fritz, Taylor | | Isner, John | | Johnson, Steve | | Kudla, Denis | | Mmoh, Michael | | Novikov, Dennis | | Paul, Tommy | | Querrey, Sam | | Ram, Rajeev | | Smyczek, Tim | | Sock, Jack | | Young, Donald |
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| | Usbechistan (1) |
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| Istomin, Denis |
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