| Argentina (9) |
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| Bagnis, Facundo | | Berlocq, Carlos | | Delbonis, Federico | | Mayer, Leonardo | | Monaco, Juan | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco | | Zeballos, Horacio |
| | Australien (8) |
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| Gavrilova, Daria | | Groth, Sam | | Kyrgios, Nick | | Millman, John | | Rodionova, Arina | | Stosur, Samantha | | Thompson, Jordan | | Tomic, Bernard |
| | Østrig (2) |
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| Melzer, Gerald | | Thiem, Dominic |
| | Hviderusland (3) |
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| Azarenka, Victoria | | Govortsova, Olga | | Sasnovich, Aliaksandra |
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| Belgien (5) |
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| Darcis, Steve | | Flipkens, Kirsten | | Goffin, David | | Wickmayer, Yanina | | Zanevska, Maryna |
| | Bosnien og Herzegovina (1) |
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| Dzumhur, Damir |
| | Brasilien (3) |
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| Bellucci, Thomaz | | Dutra Silva, Rogerio | | Pereira, Teliana |
| | Bulgarien (2) |
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| Dimitrov, Grigor | | Pironkova, Tsvetana |
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| Canada (4) |
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| Bouchard, Eugenie | | Pospisil, Vasek | | Raonic, Milos | | Wozniak, Aleksandra |
| | Kina (3) |
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| Wang, Qiang | | Zhang, Shuai | | Zheng, Saisai |
| | Colombia (2) |
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| Duque-Mariño, Mariana | | Giraldo, Santiago |
| | Kroatien (7) |
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| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo | | Konjuh, Ana | | Lucic-Baroni, Mirjana | | Vekic, Donna |
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| Cypern (1) |
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| Baghdatis, Marcos |
| | Tjekkiet (13) |
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| Allertova, Denisa | | Berdych, Tomas | | Hradecka, Lucie | | Kvitova, Petra | | Pavlasek, Adam | | Pliskova, Karolina | | Pliskova, Kristyna | | Rosol, Lukas | | Safarova, Lucie | | Siniakova, Katerina | | Stepanek, Radek | | Strycova, Barbora | | Vesely, Jiri |
| | Den Dominikanske Republik (1) |
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| Estrella Burgos, Victor |
| | Estland (1) |
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| Kontaveit, Anett |
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| Frankrig (26) |
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| Andrianjafitrimo, Tessah | | Barrere, Gregoire | | Benneteau, Julien | | Bourgue, Mathias | | Chardy, Jeremy | | Cornet, Alizé | | De Schepper, Kenny | | Dodin, Oceane | | Garcia, Caroline | | Gasquet, Richard | | Georges, Myrtille | | Halys, Quentin | | Herbert, Pierre-Hugues | | Hesse, Amandine | | Lim, Alizé | | Mahut, Nicolas | | Mannarino, Adrian | | Mathieu, Paul-Henri | | Mladenovic, Kristina | | Paire, Benoit | | Parmentier, Pauline | | Pouille, Lucas | | Razzano, Virginie | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
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| Basilashvili, Nikoloz |
| | Tyskland (17) |
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| Barthel, Mona | | Beck, Annika | | Becker, Benjamin | | Brown, Dustin | | Friedsam, Anna-Lena | | Goerges, Julia | | Kamke, Tobias | | Kerber, Angelique | | Kohlschreiber, Philipp | | Lisicki, Sabine | | Maria, Tatjana | | Mayer, Florian | | Petkovic, Andrea | | Siegemund, Laura | | Struff, Jan-Lennard | | Witthoeft, Carina | | Zverev, Alexander |
| |
| | Italien (11) |
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| Bolelli, Simone | | Cecchinato, Marco | | Errani, Sara | | Fabbiano, Thomas | | Fognini, Fabio | | Giorgi, Camila | | Knapp, Karin | | Lorenzi, Paolo | | Schiavone, Francesca | | Seppi, Andreas | | Vinci, Roberta |
| | Japan (6) |
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| Daniel, Taro | | Doi, Misaki | | Hibino, Nao | | Nara, Kurumi | | Nishikori, Kei | | Osaka, Naomi |
| | Kasakhstan (5) |
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| Diyas, Zarina | | Kukushkin, Mikhail | | Putintseva, Yulia | | Shvedova, Yaroslava | | Voskoboeva, Galina |
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| Letland (3) |
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| Gulbis, Ernests | | Ostapenko, Jelena | | Sevastova, Anastasija |
| | Litauen (1) |
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| Berankis, Ricardas |
| | Luxembourg (1) |
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| Muller, Gilles |
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| Montenegro (1) |
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| Kovinic, Danka |
| | Holland (4) |
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| Bakker, Thiemo de | | Bertens, Kiki | | Haase, Robin | | Sijsling, Igor |
| | Paraguay (1) |
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| Cepede Royg, Veronica |
| | Polen (2) |
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| Linette, Magda | | Radwanska, Agnieszka |
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| | Puerto Rico (1) |
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| Puig, Monica |
| | Rumænien (6) |
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| Begu, Irina-Camelia | | Cirstea, Sorana | | Dulgheru, Alexandra | | Halep, Simona | | Niculescu, Monica | | Ungur, Adrian |
| | Rusland (12) |
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| Diatchenko, Vitalia | | Donskoy, Evgeny | | Gabashvili, Teymuraz | | Gasparyan, Margarita | | Kasatkina, Daria | | Kuznetsov, Andrey | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Pavlyuchenkova, Anastasia | | Tursunov, Dmitry | | Vesnina, Elena | | Youzhny, Mikhail |
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| Serbien (8) |
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| Djere, Laslo | | Djokovic, Novak | | Ivanovic, Ana | | Jankovic, Jelena | | Jovanovski, Bojana | | Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
| | Slovakiet (6) |
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| Cibulkova, Dominika | | Hantuchova, Daniela | | Klizan, Martin | | Martin, Andrej | | Rybarikova, Magdalena | | Schmiedlova, Anna Karolina |
| | Slovenien (2) |
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| Bedene, Aljaz | | Hercog, Polona |
| | Sydafrika (1) |
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| Anderson, Kevin |
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| | Spanien (21) |
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| Almagro, Nicolas | | Arruabarrena, Lara | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Domínguez Lino, Lourdes | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Montanes, Albert | | Muguruza, Garbiñe | | Muñoz de la Nava, Daniel | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Samper-Montana, Jordi | | Soler-Espinosa, Sílvia | | Sorribes Tormo, Sara | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Sverige (1) |
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| Larsson, Johanna |
| | Schweizisk (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 |
| | Tunesien (1) |
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| Jaziri, Malek |
| | Tyrkiet (3) |
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| Buyukakcay, Cagla | | Ilhan, Marsel | | Soylu, Ipek |
| | Ukraine (4) |
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| Bondarenko, Kateryna | | Marchenko, Illya | | Svitolina, Elina | | Tsurenko, Lesia |
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| Storbritannien (6) |
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| Broady, Naomi | | Edmund, Kyle | | Konta, Johanna | | Murray, Andy | | Robson, Laura | | Watson, Heather |
| | USA (28) |
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| Baker, Brian | | Brengle, Madison | | Chirico, Louisa | | Crawford, Samantha | | Davis, Lauren | | Falconi, Irina | | Fratangelo, Bjorn | | Fritz, Taylor | | Gibbs, Nicole | | Isner, John | | Johnson, Steve | | Keys, Madison | | Kudla, Denis | | Lepchenko, Varvara | | Mattek-Sands, Bethanie | | McHale, Christina | | Querrey, Sam | | Ram, Rajeev | | Riske, Alison | | Rogers, Shelby | | Sock, Jack | | Stephens, Sloane | | Townsend, Taylor | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Serena | | Williams, Venus | | Young, Donald |
| | | Usbekistan (1) |
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| Istomin, Denis |
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