| Argentinië (2) |
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| Cerundolo, Francisco | | Schwartzman, Diego |
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| De Minaur, Alex | | Duckworth, James | | Millman, John |
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| Monteiro, Thiago |
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| Garin, Christian |
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| Rune, Holger |
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| Sinner, Jannik | | Sonego, Lorenzo |
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| Bublik, Alexander |
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| Davidovich Fokina, Alejandro | | Martinez, Pedro |
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| Clarke, Jay | | Draper, Jack | | Evans, Daniel | | Norrie, Cameron | | Peniston, Ryan |
| | Verenigde Staten (8) |
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| Brooksby, Jenson | | Cressy, Maxime | | Fritz, Taylor | | Korda, Sebastian | | Nakashima, Brandon | | Opelka, Reilly | | Paul, Tommy | | Tiafoe, Frances |
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