| Argentyna (1) |
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| Podoroska, Nadia |
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| | Belgia (5) |
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| Bonaventure, Ysaline | | Flipkens, Kirsten | | Mertens, Elise | | Minnen, Greet | | Uytvanck, Alison Van |
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| Bułgaria (1) |
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| Pironkova, Tsvetana |
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| Andreescu, Bianca | | Fernandez, Leylah | | Marino, Rebecca |
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| Wang, Qiang | | Wang, Yafan | | Zhang, Shuai | | Zheng, Saisai | | Zhu, Lin |
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| Martic, Petra | | Vekic, Donna |
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| Republika Czeska (9) |
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| Bouzkova, Marie | | Krejcikova, Barbora | | Kvitova, Petra | | Muchova, Karolina | | Pliskova, Karolina | | Pliskova, Kristyna | | Siniakova, Katerina | | Strycova, Barbora | | Vondrousova, Marketa |
| | | Estonia (2) |
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| Kanepi, Kaia | | Kontaveit, Anett |
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| Burel, Clara | | Cornet, Alizé | | Ferro, Fiona | | Garcia, Caroline | | Gracheva, Varvara | | Mladenovic, Kristina | | Paquet, Chloe |
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| Niemcy (4) |
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| Barthel, Mona | | Kerber, Angelique | | Petkovic, Andrea | | Siegemund, Laura |
| | | | Włochy (5) |
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| Cocciaretto, Elisabetta | | Errani, Sara | | Giorgi, Camila | | Paolini, Jasmine | | Trevisan, Martina |
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| Japonia (4) |
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| Doi, Misaki | | Hibi, Mayo | | Hibino, Nao | | Osaka, Naomi |
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| Kovinic, Danka |
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| | | Rumunia (6) |
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| Begu, Irina-Camelia | | Bogdan, Ana | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Halep, Simona | | Tig, Patricia Maria |
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| Alexandrova, Ekaterina | | Blinkova, Anna | | Gasparyan, Margarita | | Kasatkina, Daria | | Kudermetova, Veronika | | Kuznetsova, Svetlana | | Pavlyuchenkova, Anastasia | | Potapova, Anastasia | | Samsonova, Liudmila | | Savinykh, Valeria | | Zvonareva, Vera |
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| Serbia (2) |
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| Danilovic, Olga | | Stojanovic, Nina |
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| Peterson, Rebecca |
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| Bencic, Belinda | | Teichmann, Jil |
| | |
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| Boulter, Katie | | Jones, Francesca | | Konta, Johanna | | Watson, Heather |
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