Argentina (2) |
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Mayer, Leonardo | Schwartzman, Diego |
| Australia (2) |
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De Minaur, Alex | Millman, John |
| Canada (1) |
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Shapovalov, Denis |
| |
Ekvador (1) |
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Quiroz, Roberto |
| Frankrike (1) |
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Simon, Gilles |
| Tyskland (2) |
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Brands, Daniel | Zverev, Mischa |
| Italia (3) |
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Berrettini, Matteo | Cecchinato, Marco | Seppi, Andreas |
|
Kazakhstan (1) |
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Kukushkin, Mikhail |
| Luxembourg (1) |
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Muller, Gilles |
| Russland (1) |
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Medvedev, Daniil |
| |
| | England (4) |
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Clarke, Jay | Edmund, Kyle | Murray, Andy | Norrie, Cameron |
| Amerika (4) |
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Donaldson, Jared | Fritz, Taylor | Harrison, Ryan | Johnson, Steve |
|
Uzbekistan (1) |
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Istomin, Denis |
|