| Argentina (4) |
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| Bagnis, Facundo | | Cerundolo, Francisco | | Coria, Federico | | Schwartzman, Diego |
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| Duckworth, James | | Millman, John | | Purcell, Max | | Saville, Luke |
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| Barrios Vera, Marcelo Tomas |
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| Varillas, Juan Pablo |
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| Lu, Yen-Hsun |
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| Giron, Marcos | | Paul, Tommy | | Sandgren, Tennys | | Tiafoe, Frances |
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| Istomin, Denis |
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