| Argentina (1) |
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| Del Potro, Juan Martin |
| | Australia (1) |
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| Barty, Ashleigh |
| | Canada (1) |
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| Bouchard, Eugenie |
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| Repubblica Ceca (3) |
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| Safarova, Lucie | | Vesely, Jiri | | Vondrousova, Marketa |
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| Garcia, Caroline | | Mannarino, Adrian | | Monfils, Gael |
| | Germania (4) |
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| Gojowczyk, Peter | | Kerber, Angelique | | Marterer, Maximilian | | Zverev, Alexander |
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| Fognini, Fabio | | Giorgi, Camila |
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| Sevastova, Anastasija |
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| Radwanska, Agnieszka |
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| Cirstea, Sorana | | Halep, Simona |
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| Russia (5) |
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| Donskoy, Evgeny | | Khachanov, Karen | | Medvedev, Daniil | | Sharapova, Maria | | Vesnina, Elena |
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| Djokovic, Novak |
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| Chung, Hyeon |
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| Verdasco, Fernando |
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| Tsurenko, Lesia |
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