| Argentina (1) |
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| Baez, Sebastian |
| | Australien (1) |
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| De Minaur, Alex |
| | | Canada (1) |
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| Auger-Aliassime, Felix |
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| | | Frankrig (3) |
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| Humbert, Ugo | | Mannarino, Adrian | | Rinderknech, Arthur |
| | Italien (1) |
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| Musetti, Lorenzo |
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| Kasakhstan (1) |
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| Bublik, Alexander |
| | Holland (1) |
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| Zandschulp, Botic van de |
| | | Rusland (2) |
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| Karatsev, Aslan | | Safiullin, Roman |
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| Serbien (2) |
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| Djere, Laslo | | Kecmanovic, Miomir |
| | Slovakiet (1) |
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| Molcan, Alex |
| | Spanien (5) |
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| Alcaraz, Carlos | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert |
| | Schweizisk (3) |
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| Huesler, Marc-Andrea | | Stricker, Dominic | | Wawrinka, Stan |
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| Storbritannien (2) |
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| Draper, Jack | | Murray, Andy |
| | USA (4) |
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| Brooksby, Jenson | | Cressy, Maxime | | McDonald, Mackenzie | | Nakashima, Brandon |
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