| Аргентина (8) |
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| Andreozzi, Guido | | Bagnis, Facundo | | Berlocq, Carlos | | Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego |
| | Австралия (7) |
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| De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | Thompson, Jordan |
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| Novak, Dennis | | Thiem, Dominic |
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| Bemelmans, Ruben | | Goffin, David |
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| Dimitrov, Grigor |
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| Auger-Aliassime, Felix | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Shapovalov, Denis |
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| Cilic, Marin | | Coric, Borna |
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| Baghdatis, Marcos |
| | | Франция (12) |
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| Benneteau, Julien | | Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Humbert, Ugo | | Mahut, Nicolas | | Mannarino, Adrian | | Monfils, Gael | | Moutet, Corentin | | Paire, Benoit | | Pouille, Lucas | | Simon, Gilles |
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| Basilashvili, Nikoloz |
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| Gojowczyk, Peter | | Hanfmann, Yannick | | Kohlschreiber, Philipp | | Maden, Yannick | | Marterer, Maximilian | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
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| Tsitsipas, Stefano |
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| Fucsovics, Marton |
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| Berrettini, Matteo | | Cecchinato, Marco | | Fognini, Fabio | | Gaio, Federico | | Lorenzi, Paolo | | Seppi, Andreas | | Sonego, Lorenzo | | Travaglia, Stefano |
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| Kukushkin, Mikhail |
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| Sousa, Joao |
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| Bedene, Aljaz |
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| Chung, Hyeon |
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| | Соединенные Штаты (18) |
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| Altamirano, Collin | | Brooksby, Jenson | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Klahn, Bradley | | Krueger, Mitchell | | Kudla, Denis | | McDonald, Mackenzie | | Mmoh, Michael | | Querrey, Sam | | Rubin, Noah | | Sandgren, Tennys | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
| | Узбекистан (1) |
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| Istomin, Denis |
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