| | | Czech Republic (1) |
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| Pliskova, Karolina |
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| Germany (1) |
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| Zverev, Alexander |
| | Japan (2) |
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| Nishikori, Kei | | Osaka, Naomi |
| | Latvia (1) |
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| Sevastova, Anastasija |
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| Russia (1) |
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| Medvedev, Daniil |
| | Serbia (1) |
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| Djokovic, Novak |
| | Spain (2) |
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| Carreno Busta, Pablo | | Muguruza, Garbiñe |
| | Ukraine (1) |
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| Svitolina, Elina |
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| United States (2) |
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| Keys, Madison | | Williams, Serena |
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