| Argentinien (2) |
|---|
| Del Potro, Juan Martin | | Schwartzman, Diego |
| | Australien (2) |
|---|
| Kyrgios, Nick | | Smith, John-Patrick |
| | Österreich (1) |
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| Thiem, Dominic |
| |
| Bulgarien (1) |
|---|
| Dimitrov, Grigor |
| | | Kroatien (2) |
|---|
| Coric, Borna | | Karlovic, Ivo |
| | Tschechien (2) |
|---|
| Berdych, Tomas | | Vesely, Jiri |
|
| Frankreich (5) |
|---|
| Gasquet, Richard | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Deutschland (3) |
|---|
| Marterer, Maximilian | | Zverev, Alexander | | Zverev, Mischa |
| | Indien (1) |
|---|
| Ramanathan, Ramkumar |
|
| Italien (3) |
|---|
| Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo |
| | | Luxemburg (1) |
|---|
| Muller, Gilles |
| | Die Niederlande (1) |
|---|
| Haase, Robin |
|
| | Russland (3) |
|---|
| Khachanov, Karen | | Medvedev, Daniil | | Youzhny, Mikhail |
| | Serbien (2) |
|---|
| Tipsarevic, Janko | | Troicki, Viktor |
| | Südafrika (1) |
|---|
| Anderson, Kevin |
|
| | Spanien (7) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| | Schweiz (1) |
|---|
| Federer, Roger |
| | Ukraine (1) |
|---|
| Dolgopolov, Alexandr |
|
| Groß Britannien (1) |
|---|
| Edmund, Kyle |
| | Vereinigte Staaten (13) |
|---|
| Donaldson, Jared | | Eubanks, Christopher | | Harrison, Christian | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kozlov, Stefan | | Krueger, Mitchell | | Paul, Tommy | | Querrey, Sam | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
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