| l’Argentine (7) |
|---|
| Andreozzi, Guido | | Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | l’Australie (10) |
|---|
| Bolt, Alex | | De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | Smith, John-Patrick | | Thompson, Jordan | | Tomic, Bernard |
| | l’Autriche (2) |
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| Novak, Dennis | | Thiem, Dominic |
| | la Belgique (2) |
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| Bemelmans, Ruben | | Goffin, David |
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| la Bosnie et Herzegovina (2) |
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| Basic, Mirza | | Dzumhur, Damir |
| | la Bulgarie (1) |
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| Dimitrov, Grigor |
| | le Canada (4) |
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| Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Shapovalov, Denis |
| | la Chile (2) |
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| Garin, Christian | | Jarry, Nicolas |
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| la Croatie (3) |
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| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo |
| | la Chypre (1) |
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| Baghdatis, Marcos |
| | la République Tchèque (1) |
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| Vesely, Jiri |
| | la France (12) |
|---|
| Barrere, Gregoire | | Benneteau, Julien | | Bonzi, Benjamin | | Chardy, Jeremy | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles |
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| la Géorgie (1) |
|---|
| Basilashvili, Nikoloz |
| | l’Allemagne (8) |
|---|
| Gojowczyk, Peter | | Kohlschreiber, Philipp | | Maden, Yannick | | Marterer, Maximilian | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
| | la Grèce (1) |
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| Tsitsipas, Stefano |
| | l’Hongrie (1) |
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| Fucsovics, Marton |
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| | | l’Italie (9) |
|---|
| Berrettini, Matteo | | Bolelli, Simone | | Cecchinato, Marco | | Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas | | Sonego, Lorenzo | | Travaglia, Stefano |
| | le Japon (4) |
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| Daniel, Taro | | Nishikori, Kei | | Nishioka, Yoshihito | | Sugita, Yuichi |
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| le Kazakhstan (1) |
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| Kukushkin, Mikhail |
| | la Lettonie (1) |
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| Gulbis, Ernests |
| | la Lituanie (1) |
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| Berankis, Ricardas |
| | le Luxembourg (1) |
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| Muller, Gilles |
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| la Moldavie (1) |
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| Albot, Radu |
| | les Pays-Bas (1) |
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| Haase, Robin |
| | la Pologne (1) |
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| Hurkacz, Hubert |
| | le Portugal (2) |
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| Elias, Gastao | | Sousa, Joao |
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| la Roumanie (1) |
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| Copil, Marius |
| | la Russie (4) |
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| Donskoy, Evgeny | | Khachanov, Karen | | Medvedev, Daniil | | Youzhny, Mikhail |
| | la Servie (4) |
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| Djere, Laslo | | Djokovic, Novak | | Krajinovic, Filip | | Lajovic, Dusan |
| | la Slovaquie (2) |
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| Gombos, Norbert | | Lacko, Lukas |
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| la Slovénie (1) |
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| Bedene, Aljaz |
| | l’Afrique du Sud (1) |
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| Anderson, Kevin |
| | l’Espagne (8) |
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| Carballes Baena, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
| | la Suisse (2) |
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| Federer, Roger | | Wawrinka, Stan |
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| l’île de Taiwan (1) |
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| Jung, Jason |
| | la Tunisie (1) |
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| Jaziri, Malek |
| | l’Ukraine (1) |
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| Stakhovsky, Sergiy |
| | le Royaume-Uni (4) |
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| Broady, Liam | | Clarke, Jay | | Edmund, Kyle | | Norrie, Cameron |
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| les Etats-Unis (14) |
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| Donaldson, Jared | | Fritz, Taylor | | Harrison, Christian | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Klahn, Bradley | | Kudla, Denis | | McDonald, Mackenzie | | Mmoh, Michael | | Querrey, Sam | | Sandgren, Tennys | | Sock, Jack | | Tiafoe, Frances |
| | l’Uruguay (1) |
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| Cuevas, Pablo |
| | l’Oezbékistan (1) |
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| Istomin, Denis |
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