| Australien (1) |
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| Stosur, Samantha |
| | Weißrussland (1) |
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| Sabalenka, Aryna |
| | Belgien (1) |
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| Mertens, Elise |
| | Bulgarien (1) |
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| Pironkova, Tsvetana |
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| China (6) |
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| Peng, Shuai | | Wang, Qiang | | Zhang, Kai-Lin | | Zhang, Shuai | | Zheng, Saisai | | Zhu, Lin |
| | | Tschechien (4) |
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| Pliskova, Karolina | | Pliskova, Kristyna | | Siniakova, Katerina | | Strycova, Barbora |
| | Dänemark (1) |
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| Wozniacki, Caroline |
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| Frankreich (2) |
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| Garcia, Caroline | | Mladenovic, Kristina |
| | Deutschland (3) |
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| Barthel, Mona | | Kerber, Angelique | | Siegemund, Laura |
| | Italien (1) |
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| Vinci, Roberta |
| | Japan (2) |
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| Doi, Misaki | | Osaka, Naomi |
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| Kasachstan (2) |
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| Putintseva, Yulia | | Shvedova, Yaroslava |
| | Lettland (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
| | Luxemburg (1) |
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| Minella, Mandy |
| | Die Niederlande (1) |
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| Bertens, Kiki |
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| Polen (1) |
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| Radwanska, Agnieszka |
| | Puerto Rico (1) |
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| Puig, Monica |
| | Rumänien (1) |
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| Begu, Irina-Camelia |
| | Russland (4) |
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| Kasatkina, Daria | | Makarova, Ekaterina | | Pavlyuchenkova, Anastasia | | Vesnina, Elena |
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| Serbien (1) |
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| Jankovic, Jelena |
| | Slowakei (1) |
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| Cibulkova, Dominika |
| | Spanien (3) |
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| Arruabarrena, Lara | | Muguruza, Garbiñe | | Soler-Espinosa, Sílvia |
| | Schweden (1) |
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| Larsson, Johanna |
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| Schweiz (1) |
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| Golubic, Viktorija |
| | Taiwan (1) |
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| Chang, Kai-Chen |
| | | Türkei (1) |
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| Buyukakcay, Cagla |
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| Ukraine (3) |
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| Bondarenko, Kateryna | | Svitolina, Elina | | Tsurenko, Lesia |
| | Vereinigte Staaten (6) |
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| Bellis, Catherine | | Brengle, Madison | | Davis, Lauren | | McHale, Christina | | Riske, Alison | | Vandeweghe, Coco |
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