| Australien (1) |
|---|
| Ebden, Matthew |
| | Hviderusland (2) |
|---|
| Gerasimov, Egor | | Ivashka, Ilya |
| | Bosnien og Herzegovina (1) |
|---|
| Dzumhur, Damir |
| |
| Kroatien (2) |
|---|
| Cilic, Marin | | Coric, Borna |
| | Cypern (1) |
|---|
| Baghdatis, Marcos |
| | Tjekkiet (2) |
|---|
| Berdych, Tomas | | Vesely, Jiri |
| | Egypten (1) |
|---|
| Safwat, Mohamed |
|
| Frankrig (3) |
|---|
| Monfils, Gael | | Moutet, Corentin | | Paire, Benoit |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (2) |
|---|
| Kohlschreiber, Philipp | | Struff, Jan-Lennard |
| | Grækenland (1) |
|---|
| Tsitsipas, Stefano |
|
| Ungarn (1) |
|---|
| Fucsovics, Marton |
| | Indien (1) |
|---|
| Ramanathan, Ramkumar |
| | Italien (2) |
|---|
| Berrettini, Matteo | | Fabbiano, Thomas |
| |
| Kasakhstan (1) |
|---|
| Kukushkin, Mikhail |
| | Litauen (1) |
|---|
| Berankis, Ricardas |
| | |
| Rusland (2) |
|---|
| Khachanov, Karen | | Medvedev, Daniil |
| | Slovenien (1) |
|---|
| Bedene, Aljaz |
| | Spanien (2) |
|---|
| Bautista Agut, Roberto | | Verdasco, Fernando |
| | Schweizisk (1) |
|---|
| Federer, Roger |
|
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