| Argentina (1) |
|---|
| Pella, Guido |
| | Australien (2) |
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| Kyrgios, Nick | | Millman, John |
| | Bosnien og Herzegovina (1) |
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| Basic, Mirza |
| | Canada (2) |
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| Raonic, Milos | | Shapovalov, Denis |
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| Kroatien (1) |
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| Galovic, Viktor |
| | Tjekkiet (1) |
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| Berdych, Tomas |
| | Frankrig (3) |
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| Paire, Benoit | | Pouille, Lucas | | Simon, Gilles |
| | Tyskland (7) |
|---|
| Kohlschreiber, Philipp | | Maden, Yannick | | Marterer, Maximilian | | Mayer, Florian | | Molleker, Rudolf | | Struff, Jan-Lennard | | Zverev, Mischa |
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| Ungarn (1) |
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| Fucsovics, Marton |
| | Indien (1) |
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| Gunneswaran, Prajnesh |
| | | Rusland (1) |
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| Youzhny, Mikhail |
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| Serbien (1) |
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| Troicki, Viktor |
| | Spanien (1) |
|---|
| Lopez, Feliciano |
| | Schweizisk (1) |
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| Federer, Roger |
| | USA (2) |
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| Fritz, Taylor | | Kudla, Denis |
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| Usbekistan (1) |
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| Istomin, Denis |
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