| Argentina (7) |
|---|
| Bagnis, Facundo | | Del Potro, Juan Martin | | Delbonis, Federico | | Monaco, Juan | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australia (3) |
|---|
| Kyrgios, Nick | | Thompson, Jordan | | Tomic, Bernard |
| | Austria (1) |
|---|
| Thiem, Dominic |
| |
| | Bosnia-Erzegovina (1) |
|---|
| Dzumhur, Damir |
| | Brasile (2) |
|---|
| Bellucci, Thomaz | | Monteiro, Thiago |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
|
| | Croazia (3) |
|---|
| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
| | Repubblica Ceca (3) |
|---|
| Berdych, Tomas | | Pavlasek, Adam | | Vesely, Jiri |
| | Francia (7) |
|---|
| Chardy, Jeremy | | Mahut, Nicolas | | Mannarino, Adrian | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles |
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| Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Germania (8) |
|---|
| Becker, Benjamin | | Brown, Dustin | | Haas, Tommy | | Kohlschreiber, Philipp | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
| | | Italia (3) |
|---|
| Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas |
|
| Giappone (2) |
|---|
| Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazakistan (1) |
|---|
| Kukushkin, Mikhail |
| | Lussemburgo (1) |
|---|
| Muller, Gilles |
| | Messico (1) |
|---|
| Escobedo, Ernesto |
|
| | | | Portogallo (2) |
|---|
| Elias, Gastao | | Sousa, Joao |
|
| Russia (5) |
|---|
| Khachanov, Karen | | Kravchuk, Konstantin | | Kuznetsov, Andrey | | Rublev, Andrey | | Youzhny, Mikhail |
| | Serbia (2) |
|---|
| Lajovic, Dusan | | Troicki, Viktor |
| | Slovacchia (2) |
|---|
| Klizan, Martin | | Lacko, Lukas |
| | Slovenia (1) |
|---|
| Bedene, Aljaz |
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| Sud Africa (1) |
|---|
| Anderson, Kevin |
| | Corea del Sud (1) |
|---|
| Chung, Hyeon |
| | Spagna (9) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Verdasco, Fernando |
| |
| Svizzera (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| | | | Ucraina (1) |
|---|
| Dolgopolov, Alexandr |
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| Regno Unito (2) |
|---|
| Edmund, Kyle | | Evans, Daniel |
| | Stati Uniti (12) |
|---|
| Donaldson, Jared | | Fritz, Taylor | | Harrison, Christian | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Mmoh, Michael | | Querrey, Sam | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
| | | Usbechistan (1) |
|---|
| Istomin, Denis |
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