| Argentina (6) |
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| Delbonis, Federico | | Mayer, Leonardo | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco |
| | Austrália (18) |
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| Birrell, Kimberly | | Duckworth, James | | Ebden, Matthew | | Gavrilova, Daria | | Groth, Sam | | Hewitt, Lleyton | | Hon, Priscilla | | Inglis, Maddison | | Jasika, Omar | | Kyrgios, Nick | | Millman, John | | Patterson, Tammi | | Sanders, Storm | | Stosur, Samantha | | Thompson, Jordan | | Tomic, Bernard | | Tomljanovic, Ajla | | Wolfe, Jarmila |
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| Paszek, Tamira | | Thiem, Dominic |
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| Azarenka, Victoria | | Govortsova, Olga | | Sasnovich, Aliaksandra |
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| Bélgica (6) |
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| Darcis, Steve | | Flipkens, Kirsten | | Goffin, David | | Uytvanck, Alison Van | | Wickmayer, Yanina | | Zanevska, Maryna |
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| Basic, Mirza | | Dzumhur, Damir |
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| Bouchard, Eugenie | | Pospisil, Vasek | | Raonic, Milos |
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| Duque-Mariño, Mariana | | Giraldo, Santiago |
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| Chipre (1) |
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| Baghdatis, Marcos |
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| Allertova, Denisa | | Berdych, Tomas | | Cetkovska, Petra | | Hradecka, Lucie | | Koukalova, Klara | | Kvitova, Petra | | Pliskova, Karolina | | Pliskova, Kristyna | | Rosol, Lukas | | Siniakova, Katerina | | Stepanek, Radek | | Strycova, Barbora | | Vesely, Jiri |
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| Wozniacki, Caroline |
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| Estrella Burgos, Victor |
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| Kontaveit, Anett |
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| Benneteau, Julien | | Chardy, Jeremy | | Cornet, Alizé | | Dodin, Oceane | | Garcia, Caroline | | Halys, Quentin | | Herbert, Pierre-Hugues | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Mladenovic, Kristina | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
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| Basilashvili, Nikoloz |
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| | | |
| Itália (8) |
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| Bolelli, Simone | | Cecchinato, Marco | | Errani, Sara | | Fognini, Fabio | | Giorgi, Camila | | Lorenzi, Paolo | | Seppi, Andreas | | Vinci, Roberta |
| | Japão (9) |
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| Daniel, Taro | | Doi, Misaki | | Hibino, Nao | | Ito, Tatsuma | | Nara, Kurumi | | Nishikori, Kei | | Nishioka, Yoshihito | | Osaka, Naomi | | Sugita, Yuichi |
| | Cazaquistão (4) |
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| Diyas, Zarina | | Kukushkin, Mikhail | | Putintseva, Yulia | | Shvedova, Yaroslava |
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| Gulbis, Ernests | | Ostapenko, Jelena | | Sevastova, Anastasija |
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| Bakker, Thiemo de | | Bertens, Kiki | | Haase, Robin |
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| Janowicz, Jerzy | | Linette, Magda | | Radwanska, Agnieszka | | Radwanska, Urszula |
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| Puig, Monica |
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| Rússia (12) |
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| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Gasparyan, Margarita | | Kasatkina, Daria | | Kulichkova, Elizaveta | | Kuznetsov, Andrey | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Pavlyuchenkova, Anastasia | | Rodina, Evgeniya | | Sharapova, Maria | | Tursunov, Dmitry |
| | Sérvia (8) |
|---|
| Djokovic, Novak | | Ivanovic, Ana | | Jankovic, Jelena | | Jovanovski, Bojana | | Krajinovic, Filip | | Krunic, Aleksandra | | Lajovic, Dusan | | Troicki, Viktor |
| | Eslováquia (6) |
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| Cibulkova, Dominika | | Hantuchova, Daniela | | Klizan, Martin | | Kovalik, Jozef | | Rybarikova, Magdalena | | Schmiedlova, Anna Karolina |
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| Bedene, Aljaz | | Hercog, Polona |
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| África do Sul (1) |
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| Anderson, Kevin |
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| Chung, Hyeon |
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| Almagro, Nicolas | | Andujar, Pablo | | Arruabarrena, Lara | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Domínguez Lino, Lourdes | | Ferrer, David | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Lopez, Feliciano | | Muguruza, Garbiñe | | Muñoz de la Nava, Daniel | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Robredo, Tommy | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Suécia (1) |
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| Larsson, Johanna |
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| Suíça (5) |
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| Bacsinszky, Timea | | Bencic, Belinda | | Federer, Roger | | Golubic, Viktorija | | Wawrinka, Stan |
| | | Tailândia (1) |
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| Kumkhum, Luksika |
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| Ucrânia (6) |
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| Bondarenko, Kateryna | | Dolgopolov, Alexandr | | Marchenko, Illya | | Stakhovsky, Sergiy | | Svitolina, Elina | | Tsurenko, Lesia |
| | Reino Unido (5) |
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| Edmund, Kyle | | Evans, Daniel | | Konta, Johanna | | Murray, Andy | | Watson, Heather |
| | Estados Unidos (31) |
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| Baker, Brian | | Brengle, Madison | | Crawford, Samantha | | Davis, Lauren | | Duval, Victoria | | Falconi, Irina | | Fratangelo, Bjorn | | Fritz, Taylor | | Gibbs, Nicole | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Keys, Madison | | King, Vania | | Krajicek, Austin | | Kudla, Denis | | Lepchenko, Varvara | | Mattek-Sands, Bethanie | | McHale, Christina | | Querrey, Sam | | Ram, Rajeev | | Riske, Alison | | Rubin, Noah | | Smyczek, Tim | | Sock, Jack | | Stephens, Sloane | | Tatishvili, Anna | | Vandeweghe, Coco | | Williams, Serena | | Williams, Venus | | Young, Donald |
| |
| Uzbequistão (1) |
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| Istomin, Denis |
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