| Argentinien (1) |
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| Delbonis, Federico |
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| Ebden, Matthew | | Fancutt, Thomas | | O'Connell, Christopher | | Purcell, Max | | Schoolkate, Tristan | | Smith, John-Patrick | | Sweeny, Dane | | Thompson, Jordan | | Vukic, Aleksandar |
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| Ivashka, Ilya |
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| Coppejans, Kimmer | | Goffin, David |
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| Dellien, Hugo |
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| Pospisil, Vasek |
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| Caruso, Salvatore | | Mager, Gianluca | | Seppi, Andreas | | Sinner, Jannik | | Travaglia, Stefano |
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| Uchiyama, Yasutaka |
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| Bublik, Alexander |
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| Djere, Laslo | | Kecmanovic, Miomir |
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| Gombos, Norbert | | Martin, Andrej |
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| Anderson, Kevin |
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| Laaksonen, Henri |
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| Stakhovsky, Sergiy |
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| Vereinigte Staaten (4) |
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| Cressy, Maxime | | Opelka, Reilly | | Querrey, Sam | | Sandgren, Tennys |
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