| Argentina (5) |
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| Cachin, Pedro | | Cerundolo, Francisco | | Etcheverry, Tomas Martin | | Schwartzman, Diego | | Trungelliti, Marco |
| | Austrálie (2) |
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| De Minaur, Alex | | Kubler, Jason |
| | Bělorusko (1) |
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| Ivashka, Ilya |
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| Bulharsko (1) |
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| Dimitrov, Grigor |
| | Kanada (1) |
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| Shapovalov, Denis |
| | |
| | Finsko (1) |
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| Ruusuvuori, Emil |
| | Řecko (1) |
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| Tsitsipas, Stefanos |
| | Maďarsko (1) |
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| Balazs, Attila |
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| Itálie (5) |
|---|
| Arnaldi, Matteo | | Giustino, Lorenzo | | Musetti, Lorenzo | | Passaro, Francesco | | Sinner, Jannik |
| | Japonsko (1) |
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| Nishioka, Yoshihito |
| | Kazachstán (2) |
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| Bublik, Alexander | | Shevchenko, Alexander |
| | Nizozemsko (1) |
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| Brouwer, Gijs |
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| | Portugalsko (1) |
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| Borges, Nuno |
| | Rusko (2) |
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| Khachanov, Karen | | Kotov, Pavel |
| | Slovensko (1) |
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| Kovalik, Jozef |
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| Španělsko (11) |
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| Alcaraz, Carlos | | Andujar, Pablo | | Bautista Agut, Roberto | | Davidovich Fokina, Alejandro | | Lopez, Feliciano | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Rincon, Daniel | | Verdasco, Fernando | | Zapata Miralles, Bernabe |
| | Ukrajina (1) |
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| Krutykh, Oleksii |
| | Velká Británie (2) |
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| Evans, Daniel | | Norrie, Cameron |
| | USA (3) |
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| McDonald, Mackenzie | | Shelton, Ben | | Tiafoe, Frances |
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