| Аргентина (7) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Cerundolo, Juan Manuel | | Comesana, Francisco | | Etcheverry, Tomas Martin | | Navone, Mariano | | Ugo Carabelli, Camilo |
| | Австралия (5) |
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| De Minaur, Alex | | Hijikata, Rinky | | O'Connell, Christopher | | Popyrin, Alexei | | Vukic, Aleksandar |
| | Австрия (1) |
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| Ofner, Sebastian |
| | Бельгия (2) |
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| Bergs, Zizou | | Goffin, David |
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| Босния и Герцеговина (1) |
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| Dzumhur, Damir |
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| Fonseca, Joao |
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| Dimitrov, Grigor |
| | Канада (3) |
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| Auger-Aliassime, Felix | | Diallo, Gabriel | | Shapovalov, Denis |
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| | | Хорватия (3) |
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| Cilic, Marin | | Coric, Borna | | Gojo, Borna |
| | Чехия (4) |
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| Kopriva, Vit | | Lehecka, Jiri | | Machac, Tomas | | Mensik, Jakub |
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| Дания (2) |
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| Moller, Elmer | | Rune, Holger |
| | Франция (11) |
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| Bonzi, Benjamin | | Fils, Arthur | | Gaston, Hugo | | Halys, Quentin | | Humbert, Ugo | | Mayot, Harold | | Monfils, Gael | | Moutet, Corentin | | Mpetshi Perricard, Giovanni | | Muller, Alexandre | | Rinderknech, Arthur |
| | Германия (3) |
|---|
| Altmaier, Daniel | | Struff, Jan-Lennard | | Zverev, Alexander |
| | Греция (1) |
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| Tsitsipas, Stefanos |
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| | Венгрия (1) |
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| Marozsan, Fabian |
| | Италия (9) |
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| Arnaldi, Matteo | | Bellucci, Mattia | | Berrettini, Matteo | | Cina, Federico | | Cobolli, Flavio | | Darderi, Luciano | | Fognini, Fabio | | Musetti, Lorenzo | | Sonego, Lorenzo |
| | Япония (2) |
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| Nishikori, Kei | | Nishioka, Yoshihito |
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| Казахстан (1) |
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| Bublik, Alexander |
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| Griekspoor, Tallon | | Zandschulp, Botic van de |
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| Hurkacz, Hubert | | Majchrzak, Kamil |
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| Borges, Nuno |
| | Россия (4) |
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| Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey | | Safiullin, Roman |
| | Сербия (5) |
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| Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Lajovic, Dusan | | Medjedovic, Hamad |
| | Испания (7) |
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| Alcaraz, Carlos | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Landaluce, Martin | | Martinez, Pedro | | Munar, Jaume |
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| Великобритания (3) |
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| Draper, Jack | | Fearnley, Jacob | | Norrie, Cameron |
| | Соединенные Штаты (12) |
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| Fritz, Taylor | | Giron, Marcos | | Korda, Sebastian | | Kovacevic, Aleksandar | | Michelsen, Alex | | Nakashima, Brandon | | Opelka, Reilly | | Paul, Tommy | | Quinn, Ethan | | Shelton, Ben | | Tiafoe, Frances | | Tien, Learner |
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