| Argentina (5) |
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| Baez, Sebastian | | Cerundolo, Francisco | | Cerundolo, Juan Manuel | | Comesana, Francisco | | Etcheverry, Tomas Martin |
| | Austrálie (2) |
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| De Minaur, Alex | | Popyrin, Alexei |
| | Belgie (2) |
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| Bergs, Zizou | | Blockx, Alexander |
| | Brazílie (1) |
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| Fonseca, Joao |
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| Bulharsko (1) |
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| Dimitrov, Grigor |
| | Kanada (3) |
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| Auger-Aliassime, Felix | | Diallo, Gabriel | | Shapovalov, Denis |
| | Chile (2) |
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| Garin, Christian | | Tabilo, Alejandro |
| | Chorvatsko (1) |
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| Cilic, Marin |
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| Česká republika (3) |
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| Lehecka, Jiri | | Machac, Tomas | | Mensik, Jakub |
| | Francie (8) |
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| Atmane, Terence | | Humbert, Ugo | | Kouame, Moise | | Mannarino, Adrian | | Monfils, Gael | | Moutet, Corentin | | Muller, Alexandre | | Rinderknech, Arthur |
| | Německo (2) |
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| Altmaier, Daniel | | Zverev, Alexander |
| | Řecko (1) |
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| Tsitsipas, Stefanos |
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| Maďarsko (2) |
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| Fucsovics, Marton | | Marozsan, Fabian |
| | Itálie (6) |
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| Arnaldi, Matteo | | Berrettini, Matteo | | Cobolli, Flavio | | Darderi, Luciano | | Musetti, Lorenzo | | Sinner, Jannik |
| | Kazachstán (2) |
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| Bublik, Alexander | | Shevchenko, Alexander |
| | Monako (1) |
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| Vacherot, Valentin |
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| Nizozemsko (1) |
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| Griekspoor, Tallon |
| | | Polsko (1) |
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| Hurkacz, Hubert |
| | Portugalsko (1) |
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| Borges, Nuno |
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| Rusko (3) |
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| Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | Srbsko (1) |
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| Kecmanovic, Miomir |
| | Španělsko (2) |
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| Alcaraz, Carlos | | Bautista Agut, Roberto |
| | Švýcarsko (1) |
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| Wawrinka, Stan |
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| Velká Británie (1) |
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| Norrie, Cameron |
| | USA (2) |
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| Nava, Emilio | | Quinn, Ethan |
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