| Argentinien (2) |
|---|
| Pella, Guido | | Schwartzman, Diego |
| | Österreich (1) |
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| Thiem, Dominic |
| | Bulgarien (1) |
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| Dimitrov, Grigor |
| | Kanada (1) |
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| Auger-Aliassime, Felix |
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| Chile (1) |
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| Garin, Christian |
| | China (2) |
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| Li, Zhe | | Zhang, Zhizhen |
| | Frankreich (3) |
|---|
| Chardy, Jeremy | | Gasquet, Richard | | Monfils, Gael |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
|
| Deutschland (1) |
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| Zverev, Alexander |
| | Griechenland (1) |
|---|
| Tsitsipas, Stefano |
| | Italien (3) |
|---|
| Berrettini, Matteo | | Cecchinato, Marco | | Fognini, Fabio |
| | Kasachstan (1) |
|---|
| Kukushkin, Mikhail |
|
| Russland (2) |
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| Khachanov, Karen | | Rublev, Andrey |
| | Serbien (1) |
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| Lajovic, Dusan |
| | Spanien (3) |
|---|
| Bautista Agut, Roberto | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| | Groß Britannien (4) |
|---|
| Edmund, Kyle | | Evans, Daniel | | Murray, Andy | | Norrie, Cameron |
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| Vereinigte Staaten (3) |
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| Isner, John | | Querrey, Sam | | Tiafoe, Frances |
| |