| Argentina (9) |
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| Berlocq, Carlos | | Del Potro, Juan Martin | | Delbonis, Federico | | Kicker, Nicolas | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco | | Zeballos, Horacio |
| | Austrália (11) |
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| Barty, Ashleigh | | De Minaur, Alex | | Fourlis, Jaimee | | Gavrilova, Daria | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Millman, John | | Stosur, Samantha | | Thompson, Jordan | | Tomic, Bernard | | Tomljanovic, Ajla |
| | Áustria (1) |
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| Thiem, Dominic |
| | Bielorrússia (1) |
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| Sasnovich, Aliaksandra |
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| Bélgica (7) |
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| Darcis, Steve | | Flipkens, Kirsten | | Goffin, David | | Greef, Arthur De | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Bósnia Herzegovina (1) |
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| Dzumhur, Damir |
| | Brasil (4) |
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| Bellucci, Thomaz | | Dutra Silva, Rogerio | | Haddad Maia, Beatriz | | Monteiro, Thiago |
| | Bulgária (2) |
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| Dimitrov, Grigor | | Pironkova, Tsvetana |
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| Canadá (3) |
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| Abanda, Francoise | | Bouchard, Eugenie | | Raonic, Milos |
| | | China (5) |
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| Duan, Ying-Ying | | Peng, Shuai | | Wang, Qiang | | Zhang, Shuai | | Zheng, Saisai |
| | Colômbia (2) |
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| Duque-Mariño, Mariana | | Giraldo, Santiago |
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| Croácia (7) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo | | Konjuh, Ana | | Lucic-Baroni, Mirjana | | Martic, Petra | | Vekic, Donna |
| | Chipre (1) |
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| Baghdatis, Marcos |
| | República Checa (9) |
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| Berdych, Tomas | | Kvitova, Petra | | Pliskova, Karolina | | Pliskova, Kristyna | | Safarova, Lucie | | Siniakova, Katerina | | Strycova, Barbora | | Vesely, Jiri | | Vondrousova, Marketa |
| | Dinamarca (1) |
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| Wozniacki, Caroline |
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| República Dominicana (1) |
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| Estrella Burgos, Victor |
| | Estónia (1) |
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| Kontaveit, Anett |
| | França (30) |
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| Andrianjafitrimo, Tessah | | Benneteau, Julien | | Bonzi, Benjamin | | Bourgue, Mathias | | Chardy, Jeremy | | Cornet, Alizé | | Dodin, Oceane | | Ferro, Fiona | | Garcia, Caroline | | Gasquet, Richard | | Georges, Myrtille | | Halys, Quentin | | Hamou, Maxime | | Herbert, Pierre-Hugues | | Hesse, Amandine | | Lim, Alizé | | Lokoli, Laurent | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Mladenovic, Kristina | | Monfils, Gael | | Muller, Alexandre | | Paire, Benoit | | Paquet, Chloe | | Parmentier, Pauline | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Geórgia (1) |
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| Basilashvili, Nikoloz |
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| Alemanha (13) |
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| Barthel, Mona | | Beck, Annika | | Brown, Dustin | | Goerges, Julia | | Kerber, Angelique | | Kohlschreiber, Philipp | | Maria, Tatjana | | Mayer, Florian | | Petkovic, Andrea | | Struff, Jan-Lennard | | Witthoeft, Carina | | Zverev, Alexander | | Zverev, Mischa |
| | Grécia (2) |
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| Sakkari, Maria | | Tsitsipas, Stefano |
| | | Itália (9) |
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| Bolelli, Simone | | Errani, Sara | | Fognini, Fabio | | Giorgi, Camila | | Lorenzi, Paolo | | Napolitano, Stefano | | Schiavone, Francesca | | Seppi, Andreas | | Vinci, Roberta |
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| Japão (9) |
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| Daniel, Taro | | Doi, Misaki | | Hibino, Nao | | Kato, Miyu | | Nara, Kurumi | | Nishikori, Kei | | Osaka, Naomi | | Ozaki, Risa | | Sugita, Yuichi |
| | Cazaquistão (3) |
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| Kukushkin, Mikhail | | Putintseva, Yulia | | Shvedova, Yaroslava |
| | Letónia (3) |
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| Gulbis, Ernests | | Ostapenko, Jelena | | Sevastova, Anastasija |
| | Lituânia (1) |
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| Berankis, Ricardas |
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| Luxemburgo (2) |
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| Minella, Mandy | | Muller, Gilles |
| | México (1) |
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| Escobedo, Ernesto |
| | | Montenegro (1) |
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| Kovinic, Danka |
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| Holanda (4) |
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| Bertens, Kiki | | Haase, Robin | | Hogenkamp, Richel | | Lemoine, Quirine |
| | Nova Zelândia (1) |
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| Erakovic, Marina |
| | Paraguai (1) |
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| Cepede Royg, Veronica |
| | Polónia (3) |
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| Janowicz, Jerzy | | Linette, Magda | | Radwanska, Agnieszka |
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| Portugal (2) |
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| Elias, Gastao | | Sousa, Joao |
| | Porto Rico (1) |
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| Puig, Monica |
| | Roménia (7) |
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| Begu, Irina-Camelia | | Bogdan, Ana | | Cirstea, Sorana | | Copil, Marius | | Halep, Simona | | Niculescu, Monica | | Tig, Patricia Maria |
| | Rússia (17) |
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| Alexandrova, Ekaterina | | Donskoy, Evgeny | | Gabashvili, Teymuraz | | Kasatkina, Daria | | Khachanov, Karen | | Khromacheva, Irina | | Kravchuk, Konstantin | | Kuznetsov, Andrey | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Rodina, Evgeniya | | Rublev, Andrey | | Vesnina, Elena | | Vikhlyantseva, Natalia | | Youzhny, Mikhail |
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| Sérvia (5) |
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| Djokovic, Novak | | Jankovic, Jelena | | Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
| | Eslováquia (6) |
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| Cepelova, Jana | | Cibulkova, Dominika | | Klizan, Martin | | Kovalik, Jozef | | Kucova, Kristina | | Rybarikova, Magdalena |
| | Eslovénia (1) |
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| Bedene, Aljaz |
| | África do Sul (1) |
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| Anderson, Kevin |
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| Coreia do Sul (1) |
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| Chung, Hyeon |
| | Espanha (15) |
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| Almagro, Nicolas | | Arruabarrena, Lara | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Muguruza, Garbiñe | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Sorribes Tormo, Sara | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Suécia (1) |
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| Larsson, Johanna |
| | Suíça (3) |
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| Bacsinszky, Timea | | Golubic, Viktorija | | Wawrinka, Stan |
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| Taiwan (2) |
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| Hsieh, Su-Wei | | Lu, Yen-Hsun |
| | Tunísia (2) |
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| Jabeur, Ons | | Jaziri, Malek |
| | Turquia (1) |
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| Buyukakcay, Cagla |
| | Ucrânia (6) |
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| Bondarenko, Kateryna | | Dolgopolov, Alexandr | | Kozlova, Kateryna | | Stakhovsky, Sergiy | | Svitolina, Elina | | Tsurenko, Lesia |
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| Reino Unido (4) |
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| Edmund, Kyle | | Evans, Daniel | | Konta, Johanna | | Murray, Andy |
| | Estados Unidos (26) |
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| Anisimova, Amanda | | Bellis, CiCi | | Boserup, Julia | | Brady, Jennifer | | Brengle, Madison | | Chirico, Louisa | | Davis, Lauren | | Donaldson, Jared | | Fratangelo, Bjorn | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Keys, Madison | | Lepchenko, Varvara | | Mattek-Sands, Bethanie | | McHale, Christina | | Querrey, Sam | | Riske, Alison | | Rogers, Shelby | | Sandgren, Tennys | | Sock, Jack | | Tiafoe, Frances | | Townsend, Taylor | | Vandeweghe, Coco | | Williams, Venus | | Young, Donald |
| | | Uzbequistão (1) |
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| Istomin, Denis |
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