| Argentina (4) |
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| Baez, Sebastian | | Cerundolo, Francisco | | Navone, Mariano | | Ugo Carabelli, Camilo |
| | Rakousko (2) |
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| Misolic, Filip | | Ofner, Sebastian |
| | Belgie (1) |
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| Collignon, Raphael |
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| Bosna a Hercegovina (1) |
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| Dzumhur, Damir |
| | Brazílie (1) |
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| Monteiro, Thiago |
| | Chile (2) |
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| Barrios Vera, Tomas | | Garin, Christian |
| | Česká republika (1) |
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| Kopriva, Vit |
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| | | Itálie (2) |
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| Darderi, Luciano | | Pellegrino, Andrea |
| | Nizozemsko (3) |
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| Griekspoor, Tallon | | Jong, Jesper de | | Zandschulp, Botic van de |
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| Norsko (1) |
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| Budkov Kjaer, Nicolai |
| | Portugalsko (2) |
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| Borges, Nuno | | Faria, Jaime |
| | Švédsko (3) |
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| Rejchtman Vinciguerra, William | | Ymer, Elias | | Ymer, Mikael |
| | Tchaj-wan (1) |
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| Tseng, Chun-Hsin |
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