| Australien (1) |
|---|
| Ebden, Matthew |
| | Bosnien og Herzegovina (1) |
|---|
| Basic, Mirza |
| | Bulgarien (3) |
|---|
| Andreev, Adrian | | Kuzmanov, Dimitar | | Lazarov, Alexandar |
| | Frankrig (2) |
|---|
| Mannarino, Adrian | | Monfils, Gael |
|
| Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (3) |
|---|
| Brands, Daniel | | Maden, Yannick | | Struff, Jan-Lennard |
| | Grækenland (1) |
|---|
| Tsitsipas, Stefano |
| | Ungarn (1) |
|---|
| Fucsovics, Marton |
|
| Italien (3) |
|---|
| Berrettini, Matteo | | Seppi, Andreas | | Travaglia, Stefano |
| | Kasakhstan (1) |
|---|
| Kukushkin, Mikhail |
| | | Rumænien (1) |
|---|
| Copil, Marius |
|
| Rusland (2) |
|---|
| Khachanov, Karen | | Medvedev, Daniil |
| | Serbien (2) |
|---|
| Djere, Laslo | | Troicki, Viktor |
| | Slovakiet (1) |
|---|
| Klizan, Martin |
| | Spanien (2) |
|---|
| Bautista Agut, Roberto | | Verdasco, Fernando |
|
| Schweizisk (1) |
|---|
| Wawrinka, Stan |
| | Usbekistan (1) |
|---|
| Istomin, Denis |
|