| Austrália (1) |
|---|
| Millman, John |
| | Bélgica (2) |
|---|
| Bemelmans, Ruben | | Goffin, David |
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| Dzumhur, Damir |
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| Benneteau, Julien | | Chardy, Jeremy | | De Schepper, Kenny | | Gasquet, Richard | | Hemery, Calvin | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
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| Alemanha (3) |
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| Brown, Dustin | | Maden, Yannick | | Zverev, Mischa |
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| Tsitsipas, Stefano |
| | | Lituânia (1) |
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| Berankis, Ricardas |
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| Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
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| Gombos, Norbert |
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| Ferrer, David | | Garcia-Lopez, Guillermo | | Taberner, Carlos |
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