| Australia (1) |
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| Kasatkina, Daria |
| | Belarus (1) |
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| Azarenka, Victoria |
| | Belgium (2) |
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| Mertens, Elise | | Minnen, Greet |
| |
| | Czech Republic (2) |
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| Kvitova, Petra | | Pliskova, Karolina |
| | Estonia (1) |
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| Kontaveit, Anett |
| | France (1) |
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| Garcia, Caroline |
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| Germany (5) |
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| Friedsam, Anna-Lena | | Goerges, Julia | | Kerber, Angelique | | Petkovic, Andrea | | Siegemund, Laura |
| | Italy (1) |
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| Gatto-Monticone, Giulia |
| | | Latvia (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
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| Luxembourg (1) |
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| Minella, Mandy |
| | Netherlands (1) |
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| Bertens, Kiki |
| | | Russia (2) |
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| Pavlyuchenkova, Anastasia | | Zvonareva, Vera |
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| Slovakia (1) |
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| Cibulkova, Dominika |
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| Muguruza, Garbiñe | | Sorribes Tormo, Sara |
| | |
| Ukraine (1) |
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| Tsurenko, Lesia |
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