| l’Argentine (6) |
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| Delbonis, Federico | | Londero, Juan Ignacio | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco |
| | l’Australie (6) |
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| De Minaur, Alex | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Millman, John | | Popyrin, Alexei | | Thompson, Jordan |
| | l’Autriche (1) |
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| Thiem, Dominic |
| | Belarus (2) |
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| Gerasimov, Egor | | Ivashka, Ilya |
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| la Belgique (2) |
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| Darcis, Steve | | Goffin, David |
| | la Bolivie (1) |
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| Dellien, Hugo |
| | la Bosnie et Herzegovina (1) |
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| Dzumhur, Damir |
| | le Brésil (1) |
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| Monteiro, Thiago |
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| la Bulgarie (1) |
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| Dimitrov, Grigor |
| | le Canada (4) |
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| Auger-Aliassime, Felix | | Pospisil, Vasek | | Schnur, Brayden | | Shapovalov, Denis |
| | la Chile (2) |
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| Garin, Christian | | Jarry, Nicolas |
| | la Colombie (1) |
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| Giraldo, Santiago |
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| la Croatie (3) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
| | la République Tchèque (2) |
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| Berdych, Tomas | | Vesely, Jiri |
| | la France (13) |
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| Barrere, Gregoire | | Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Hoang, Antoine | | Humbert, Ugo | | Mannarino, Adrian | | Monfils, Gael | | Moutet, Corentin | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | la Géorgie (1) |
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| Basilashvili, Nikoloz |
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| l’Allemagne (6) |
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| Kamke, Tobias | | Koepfer, Dominik | | Kohlschreiber, Philipp | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard | | Zverev, Alexander |
| | la Grèce (1) |
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| Tsitsipas, Stefano |
| | l’Hongrie (1) |
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| Fucsovics, Marton |
| | l’Inde (2) |
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| Gunneswaran, Prajnesh | | Nagal, Sumit |
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| l’Italie (8) |
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| Berrettini, Matteo | | Cecchinato, Marco | | Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas | | Sinner, Jannik | | Sonego, Lorenzo |
| | le Japon (2) |
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| Nishikori, Kei | | Nishioka, Yoshihito |
| | le Kazakhstan (2) |
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| Bublik, Alexander | | Kukushkin, Mikhail |
| | la Lituanie (1) |
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| Berankis, Ricardas |
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| le Mexique (1) |
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| Escobedo, Ernesto |
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| Albot, Radu |
| | le Maroc (1) |
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| Benchetrit, Elliot |
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| Haase, Robin |
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| la Norvège (1) |
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| Ruud, Casper |
| | la Pologne (2) |
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| Hurkacz, Hubert | | Majchrzak, Kamil |
| | le Portugal (1) |
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| Sousa, Joao |
| | la Roumanie (1) |
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| Copil, Marius |
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| la Russie (4) |
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| Donskoy, Evgeny | | Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | la Servie (6) |
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| Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Krajinovic, Filip | | Lajovic, Dusan | | Tipsarevic, Janko |
| | la Slovaquie (2) |
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| Klizan, Martin | | Kovalik, Jozef |
| | la Slovénie (1) |
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| Bedene, Aljaz |
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| l’Afrique du Sud (1) |
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| Harris, Lloyd |
| | la Corée du Sud (2) |
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| Chung, Hyeon | | Kwon, Soonwoo |
| | l’Espagne (11) |
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| Andujar, Pablo | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| | la Suisse (3) |
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| Federer, Roger | | Laaksonen, Henri | | Wawrinka, Stan |
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| le Royaume-Uni (3) |
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| Edmund, Kyle | | Evans, Daniel | | Norrie, Cameron |
| | les Etats-Unis (15) |
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| Brooksby, Jenson | | Eubanks, Christopher | | Fratangelo, Bjorn | | Fritz, Taylor | | Giron, Marcos | | Isner, John | | Johnson, Steve | | Klahn, Bradley | | Kudla, Denis | | Opelka, Reilly | | Querrey, Sam | | Sandgren, Tennys | | Sock, Jack | | Svajda, Zachary | | Tiafoe, Frances |
| | l’Uruguay (1) |
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| Cuevas, Pablo |
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