Australia (4) |
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Birrell, Kimberly | Ebden, Matthew | Millman, John | Thompson, Jordan |
| Bielorussia (1) |
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Sasnovich, Aliaksandra |
| Croazia (2) |
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Martic, Petra | Vekic, Donna |
| Repubblica Ceca (2) |
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Berdych, Tomas | Vondrousova, Marketa |
|
Estonia (1) |
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Kontaveit, Anett |
| | | |
Giappone (1) |
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Nishioka, Yoshihito |
| Kazakistan (1) |
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Putintseva, Yulia |
| Olanda (2) |
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Bertens, Kiki | Haase, Robin |
| Russia (3) |
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Khachanov, Karen | Pavlyuchenkova, Anastasia | Sharapova, Maria |
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Sud Africa (1) |
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Anderson, Kevin |
| Spagna (2) |
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Bautista Agut, Roberto | Nadal, Rafael |
| Svezia (1) |
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Peterson, Rebecca |
| Svizzera (1) |
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Bencic, Belinda |
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Ucraina (1) |
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Tsurenko, Lesia |
| Stati Uniti (4) |
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Anisimova, Amanda | Fritz, Taylor | Stephens, Sloane | Tiafoe, Frances |
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