| Australien (5) |
|---|
| Bolt, Alex | | Ebden, Matthew | | Purcell, Max | | Smith, John-Patrick | | Tomic, Bernard |
| | Kanada (1) |
|---|
| Pospisil, Vasek |
| | Kroatien (2) |
|---|
| Karlovic, Ivo | | Skugor, Franko |
| | Zypern (1) |
|---|
| Baghdatis, Marcos |
|
| Frankreich (4) |
|---|
| Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mannarino, Adrian |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Griechenland (1) |
|---|
| Tsitsipas, Stefano |
| |
| Italien (1) |
|---|
| Seppi, Andreas |
| | | Luxemburg (1) |
|---|
| Muller, Gilles |
| | Die Niederlande (2) |
|---|
| Griekspoor, Tallon | | Haase, Robin |
|
| Rumänien (1) |
|---|
| Copil, Marius |
| | Russland (2) |
|---|
| Donskoy, Evgeny | | Medvedev, Daniil |
| | Slowenien (1) |
|---|
| Bedene, Aljaz |
| | Spanien (2) |
|---|
| Garcia-Lopez, Guillermo | | Verdasco, Fernando |
|
| Tunesien (1) |
|---|
| Jaziri, Malek |
| | Vereinigte Staaten (3) |
|---|
| King, Kevin | | McDonald, Mackenzie | | Smyczek, Tim |
|