| Australië (6) |
|---|
| Bolt, Alex | | De Minaur, Alex | | Duckworth, James | | Kubler, Jason | | Kyrgios, Nick | | Thompson, Jordan |
| | Wit-Rusland (1) |
|---|
| Ivashka, Ilya |
| | | Bosnië-Herzegovina (1) |
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| Basic, Mirza |
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| Canada (2) |
|---|
| Pospisil, Vasek | | Shapovalov, Denis |
| | Cyprus (1) |
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| Baghdatis, Marcos |
| | Frankrijk (5) |
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| Chardy, Jeremy | | Herbert, Pierre-Hugues | | Millot, Vincent | | Paire, Benoit | | Pouille, Lucas |
| | Duitsland (2) |
|---|
| Zverev, Alexander | | Zverev, Mischa |
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| Griekenland (1) |
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| Tsitsipas, Stefano |
| | Japan (3) |
|---|
| Nishikori, Kei | | Sugita, Yuichi | | Watanuki, Yosuke |
| | Litouwen (1) |
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| Berankis, Ricardas |
| |
| Roemenië (1) |
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| Copil, Marius |
| | Rusland (5) |
|---|
| Donskoy, Evgeny | | Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey | | Youzhny, Mikhail |
| | Slowakije (1) |
|---|
| Lacko, Lukas |
| | Zuid-Korea (1) |
|---|
| Chung, Hyeon |
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| Zwitserland (1) |
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| Wawrinka, Stan |
| | | Verenigd Koninkrijk (2) |
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| Edmund, Kyle | | Murray, Andy |
| | Verenigde Staten (12) |
|---|
| Donaldson, Jared | | Isner, John | | Johnson, Steve | | Krueger, Mitchell | | Kudla, Denis | | Kwiatkowski, Thai-Son | | McDonald, Mackenzie | | Paul, Tommy | | Rubin, Noah | | Smyczek, Tim | | Tiafoe, Frances | | Young, Donald |
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