| Argentina (3) |
|---|
| Bagnis, Facundo | | Etcheverry, Tomas Martin | | Villanueva, Gonzalo |
| | Austrálie (6) |
|---|
| Hijikata, Rinky | | Kokkinakis, Thanasi | | Kubler, Jason | | Millman, John | | Purcell, Max | | Thompson, Jordan |
| | Kanada (1) |
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| Auger-Aliassime, Felix |
| | Kolumbie (1) |
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| Barrientos, Nicolas |
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| Francie (1) |
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| Halys, Quentin |
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| Hanfmann, Yannick |
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| Uchida, Kaichi |
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| Berankis, Ricardas |
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| Mexiko (3) |
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| Escobedo, Ernesto | | Hernandez, Alex | | Pacheco Mendez, Rodrigo |
| | | Rusko (1) |
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| Medvedev, Daniil |
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| Kecmanovic, Miomir |
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| Španělsko (2) |
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| Lopez, Feliciano | | Verdasco, Fernando |
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| Laaksonen, Henri |
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| Tseng, Chun-Hsin |
| | Velká Británie (1) |
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| Norrie, Cameron |
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| USA (3) |
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| Chappell, Nick | | Johnson, Steve | | Nakashima, Brandon |
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