Argentina (1) |
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Schwartzman, Diego |
| Australia (3) |
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Barty, Ashleigh | Birrell, Kimberly | De Minaur, Alex |
| Bielorussia (2) |
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Sabalenka, Aryna | Sasnovich, Aliaksandra |
| Bulgaria (1) |
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Dimitrov, Grigor |
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Croazia (2) |
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Cilic, Marin | Martic, Petra |
| Repubblica Ceca (2) |
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Berdych, Tomas | Kvitova, Petra |
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Wozniacki, Caroline |
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Garcia, Caroline |
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Georgia (1) |
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Basilashvili, Nikoloz |
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Kerber, Angelique |
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Sakkari, Maria | Tsitsipas, Stefano |
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Fabbiano, Thomas | Seppi, Andreas |
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Russia (3) |
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Khachanov, Karen | Pavlyuchenkova, Anastasia | Sharapova, Maria |
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Bautista Agut, Roberto | Nadal, Rafael | Verdasco, Fernando |
| Svizzera (2) |
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Bencic, Belinda | Federer, Roger |
| Stati Uniti (5) |
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Anisimova, Amanda | Collins, Danielle | Fritz, Taylor | Stephens, Sloane | Tiafoe, Frances |
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