| Argentina (1) |
|---|
| Pella, Guido |
| | Australien (2) |
|---|
| Ebden, Matthew | | Millman, John |
| | | Bosnien og Herzegovina (1) |
|---|
| Dzumhur, Damir |
|
| | Frankrig (5) |
|---|
| Gasquet, Richard | | Herbert, Pierre-Hugues | | Monfils, Gael | | Paire, Benoit | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (6) |
|---|
| Gojowczyk, Peter | | Kohlschreiber, Philipp | | Molleker, Rudolf | | Moraing, Mats | | Struff, Jan-Lennard | | Zverev, Alexander |
|
| Italien (2) |
|---|
| Berrettini, Matteo | | Seppi, Andreas |
| | | |
| | Rusland (1) |
|---|
| Khachanov, Karen |
| | Serbien (2) |
|---|
| Djere, Laslo | | Kecmanovic, Miomir |
| | Spanien (2) |
|---|
| Bautista Agut, Roberto | | Munar, Jaume |
|
| Schweizisk (1) |
|---|
| Federer, Roger |
| | Ukraine (1) |
|---|
| Stakhovsky, Sergiy |
| | USA (2) |
|---|
| Fritz, Taylor | | Johnson, Steve |
|