| Austrália (6) |
|---|
| De Minaur, Alex | | Ebden, Matthew | | Millman, John | | O'Connell, Christopher | | Popyrin, Alexei | | Thompson, Jordan |
| | Rakúsko (2) |
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| Novak, Dennis | | Thiem, Dominic |
| | Bielorusko (1) |
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| Gerasimov, Egor |
| | Belgicko (1) |
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| Goffin, David |
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| Kanada (2) |
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| Pospisil, Vasek | | Shapovalov, Denis |
| | Chorvátsko (1) |
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| Coric, Borna |
| | Fínsko (1) |
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| Ruusuvuori, Emil |
| | Francúzsko (3) |
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| Chardy, Jeremy | | Gasquet, Richard | | Tsonga, Jo-Wilfried |
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| Gruzínsko (1) |
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| Basilashvili, Nikoloz |
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| Struff, Jan-Lennard |
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| Fucsovics, Marton |
| |
| Taliansko (4) |
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| Cecchinato, Marco | | Giustino, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo |
| | Japonsko (2) |
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| Nishikori, Kei | | Nishioka, Yoshihito |
| | Kazachstan (2) |
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| Bublik, Alexander | | Kukushkin, Mikhail |
| |
| Poľsko (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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| Juhoafrická republika (1) |
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| Harris, Lloyd |
| | Španielsko (5) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert | | Zapata Miralles, Bernabe |
| | | Veľká Británia (1) |
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| Evans, Daniel |
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| USA (2) |
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| Fritz, Taylor | | Opelka, Reilly |
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