| Argentina (3) |
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| Baez, Sebastian | | Cerundolo, Juan Manuel | | Ugo Carabelli, Camilo |
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| Duckworth, James |
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| Shapovalov, Denis |
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| Tabilo, Alejandro |
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| China (3) |
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| Basilashvili, Nikoloz |
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| Kecmanovic, Miomir |
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| Harris, Lloyd |
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| Brooksby, Jenson | | Damm, Martin | | Kovacevic, Aleksandar |
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