| Argentina (2) |
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| Delbonis, Federico | | Schwartzman, Diego |
| | Austrálie (2) |
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| De Minaur, Alex | | Millman, John |
| | Rakousko (1) |
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| Thiem, Dominic |
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| | Bulharsko (1) |
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| Dimitrov, Grigor |
| | Kanada (2) |
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| Auger-Aliassime, Felix | | Shapovalov, Denis |
| | Chile (1) |
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| Garin, Christian |
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| Chorvatsko (1) |
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| Cilic, Marin |
| | Francie (5) |
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| Gasquet, Richard | | Humbert, Ugo | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit |
| | Gruzie (1) |
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| Basilashvili, Nikoloz |
| | Německo (2) |
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| Struff, Jan-Lennard | | Zverev, Alexander |
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| Řecko (1) |
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| Tsitsipas, Stefanos |
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| Fucsovics, Marton |
| | Itálie (8) |
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| Berrettini, Matteo | | Caruso, Salvatore | | Fognini, Fabio | | Mager, Gianluca | | Musetti, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo | | Travaglia, Stefano |
| | Japonsko (2) |
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| Nishikori, Kei | | Nishioka, Yoshihito |
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| Kazachstán (1) |
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| Bublik, Alexander |
| | Polsko (2) |
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| Hurkacz, Hubert | | Majchrzak, Kamil |
| | Rusko (4) |
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| Karatsev, Aslan | | Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | Srbsko (5) |
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| Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Krajinovic, Filip | | Lajovic, Dusan |
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| Slovinsko (1) |
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| Bedene, Aljaz |
| | Jihoafrická republika (1) |
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| Harris, Lloyd |
| | Španělsko (5) |
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| Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Nadal, Rafael |
| | Velká Británie (2) |
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| Evans, Daniel | | Norrie, Cameron |
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| USA (3) |
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| Fritz, Taylor | | Opelka, Reilly | | Paul, Tommy |
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