| Austrálie (6) |
|---|
| De Minaur, Alex | | Ebden, Matthew | | Millman, John | | O'Connell, Christopher | | Popyrin, Alexei | | Thompson, Jordan |
| | Rakousko (2) |
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| Novak, Dennis | | Thiem, Dominic |
| | Bělorusko (1) |
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| Gerasimov, Egor |
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| Kanada (2) |
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| Pospisil, Vasek | | Shapovalov, Denis |
| | Chorvatsko (1) |
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| Coric, Borna |
| | Finsko (1) |
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| Ruusuvuori, Emil |
| | Francie (3) |
|---|
| Chardy, Jeremy | | Gasquet, Richard | | Tsonga, Jo-Wilfried |
|
| Gruzie (1) |
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| Basilashvili, Nikoloz |
| | Německo (1) |
|---|
| Struff, Jan-Lennard |
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|---|
| Fucsovics, Marton |
| |
| Itálie (4) |
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| Cecchinato, Marco | | Giustino, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo |
| | Japonsko (2) |
|---|
| Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazachstán (2) |
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| Bublik, Alexander | | Kukushkin, Mikhail |
| |
| Polsko (1) |
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| Hurkacz, Hubert |
| | Rusko (3) |
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| Karatsev, Aslan | | Khachanov, Karen | | Rublev, Andrey |
| | Srbsko (2) |
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| Krajinovic, Filip | | Lajovic, Dusan |
| | Slovinsko (1) |
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| Bedene, Aljaz |
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| Jihoafrická republika (1) |
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| Harris, Lloyd |
| | Španělsko (5) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert | | Zapata Miralles, Bernabe |
| | | Velká Británie (1) |
|---|
| Evans, Daniel |
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| USA (2) |
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| Fritz, Taylor | | Opelka, Reilly |
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