| Austria (1) |
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| Potapova, Anastasia |
| | Belarus (1) |
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| Sasnovich, Aliaksandra |
| | Belgium (2) |
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| Mertens, Elise | | Uytvanck, Alison Van |
| | China (2) |
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| Wang, Xinyu | | Zhang, Shuai |
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| | Czech Republic (3) |
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| Kvitova, Petra | | Martincova, Tereza | | Vondrousova, Marketa |
| | Estonia (1) |
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| Kontaveit, Anett |
| | France (2) |
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| Cornet, Alizé | | Gracheva, Varvara |
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| Germany (2) |
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| Niemeier, Jule | | Petkovic, Andrea |
| | | | Kazakhstan (1) |
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| Rybakina, Elena |
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| Latvia (1) |
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| Ostapenko, Jelena |
| | | Romania (4) |
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| Begu, Irina-Camelia | | Bogdan, Ana | | Cirstea, Sorana | | Cristian, Jaqueline |
| | Russia (5) |
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| Alexandrova, Ekaterina | | Andreeva, Erika | | Kudermetova, Veronika | | Pavlyuchenkova, Anastasia | | Zvonareva, Vera |
|
| | Sweden (1) |
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| Peterson, Rebecca |
| | Switzerland (2) |
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| Bencic, Belinda | | Teichmann, Jil |
| | United States (2) |
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| McNally, Caty | | Pera, Bernarda |
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| Uzbekistan (1) |
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| Rakhimova, Kamilla |
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