| Australia (1) |
|---|
| Kyrgios, Nick |
| | Canada (1) |
|---|
| Shapovalov, Denis |
| | Repubblica Ceca (1) |
|---|
| Vesely, Jiri |
| | Francia (10) |
|---|
| Benneteau, Julien | | Chardy, Jeremy | | Gasquet, Richard | | Mahut, Nicolas | | Mathieu, Paul-Henri | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
|
| Germania (2) |
|---|
| Struff, Jan-Lennard | | Zverev, Alexander |
| | Grecia (1) |
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| Tsitsipas, Stefano |
| | | Russia (6) |
|---|
| Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsov, Andrey | | Medvedev, Daniil | | Rublev, Andrey | | Youzhny, Mikhail |
|
| Slovacchia (1) |
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| Gombos, Norbert |
| | Slovenia (1) |
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| Bedene, Aljaz |
| | | Ucraina (2) |
|---|
| Marchenko, Illya | | Stakhovsky, Sergiy |
|