| Argentina (22) |
|---|
| Andreozzi, Guido | | Arguello, Facundo | | Bagnis, Facundo | | Berlocq, Carlos | | Cachin, Pedro | | Cerundolo, Francisco | | Collarini, Andrea | | Coria, Federico | | Del Potro, Juan Martin | | Delbonis, Federico | | Diaz Acosta, Facundo | | Ficovich, Juan Pablo | | Gonzalez, Maximo | | Londero, Juan Ignacio | | Mayer, Leonardo | | Mena, Facundo | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco | | Velotti, Agustin | | Zeballos, Horacio |
| | Austrália (22) |
|---|
| Banes, Maverick | | Bolt, Alex | | Bourchier, Harry | | De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Harris, Andrew | | Kokkinakis, Thanasi | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | O'Connell, Christopher | | Polmans, Marc | | Popyrin, Alexei | | Purcell, Max | | Santillan, Akira | | Saville, Luke | | Smith, John-Patrick | | Thompson, Jordan | | Tomic, Bernard | | Vukic, Aleksandar | | Whittington, Andrew |
| | Áustria (6) |
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| Melzer, Gerald | | Miedler, Lucas | | Novak, Dennis | | Ofner, Sebastian | | Rodionov, Jurij | | Thiem, Dominic |
| |
| Bielorrússia (3) |
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| Gerasimov, Egor | | Ignatik, Uladzimir | | Ivashka, Ilya |
| | Bélgica (6) |
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| Bemelmans, Ruben | | Bergs, Zizou | | Coppejans, Kimmer | | Darcis, Steve | | Goffin, David | | Greef, Arthur De |
| | | Bósnia Herzegovina (3) |
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| Basic, Mirza | | Dzumhur, Damir | | Setkic, Aldin |
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| Brasil (10) |
|---|
| Bellucci, Thomaz | | Clezar, Guilherme | | Dutra Silva, Rogerio | | Luz, Orlando | | Meligeni Rodrigues Alves, Felipe | | Menezes, Joao | | Monteiro, Thiago | | Sakamoto, Pedro | | Seyboth Wild, Thiago | | Souza, Joao |
| | Bulgária (6) |
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| Andreev, Adrian | | Dimitrov, Grigor | | Donski, Alexander | | Kuzmanov, Dimitar | | Lazarov, Alexandar | | Lazov, Alexandar |
| | Canadá (10) |
|---|
| Auger-Aliassime, Felix | | Dancevic, Frank | | Diez, Steven | | Lin, Jack Mingjie | | Peliwo, Filip | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Schnur, Brayden | | Shapovalov, Denis |
| | Chile (4) |
|---|
| Barrios Vera, Marcelo Tomas | | Garin, Christian | | Jarry, Nicolas | | Tabilo, Alejandro |
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| China (6) |
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| Bai, Yan | | Li, Zhe | | Wu, Di | | Wu, Yibing | | Zhang, Ze | | Zhang, Zhizhen |
| | Colômbia (3) |
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| Galan, Daniel Elahi | | Giraldo, Santiago | | Gonzalez, Alejandro |
| | Croácia (10) |
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| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Galovic, Viktor | | Gojo, Borna | | Karlovic, Ivo | | Mektic, Nikola | | Pavic, Mate | | Serdarusic, Nino | | Skugor, Franko |
| | República Checa (9) |
|---|
| Forejtek, Jonas | | Kolar, Zdenek | | Machac, Tomas | | Mertl, Jan | | Pavlasek, Adam | | Rosol, Lukas | | Safranek, Vaclav | | Satral, Jan | | Vesely, Jiri |
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| Dinamarca (2) |
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| Rune, Holger Vitus Nodskov | | Torpegaard, Mikael |
| | República Dominicana (2) |
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| Cid Subervi, Roberto | | Hernandez-Fernandez, Jose |
| | Equador (3) |
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| Escobar, Gonzalo | | Gomez, Emilio | | Quiroz, Roberto |
| | Egipto (1) |
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| Safwat, Mohamed |
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| El Salvador (1) |
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| Arevalo, Marcelo |
| | | Finlândia (1) |
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| Ruusuvuori, Emil |
| | França (39) |
|---|
| Barrere, Gregoire | | Blancaneaux, Geoffrey | | Bonzi, Benjamin | | Bourgue, Mathias | | Chardy, Jeremy | | Couacaud, Enzo | | De Schepper, Kenny | | Gasquet, Richard | | Gaston, Hugo | | Grenier, Hugo | | Guinard, Manuel | | Halys, Quentin | | Hamou, Maxime | | Hemery, Calvin | | Herbert, Pierre-Hugues | | Hoang, Antoine | | Humbert, Ugo | | Janvier, Maxime | | Lamasine, Tristan | | Lestienne, Constant | | Lokoli, Laurent | | Mahut, Nicolas | | Mannarino, Adrian | | Martin, Fabrice | | Mayot, Harold | | Millot, Vincent | | Monfils, Gael | | Moutet, Corentin | | Muller, Alexandre | | Olivetti, Albano | | Paire, Benoit | | Pouille, Lucas | | Rinderknech, Arthur | | Robert, Stephane | | Roumane, Rayane | | Sakharov, Gleb | | Simon, Gilles | | Tatlot, Johan | | Tsonga, Jo-Wilfried |
|
| Geórgia (1) |
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| Basilashvili, Nikoloz |
| | Alemanha (25) |
|---|
| Altmaier, Daniel | | Bachinger, Matthias | | Brown, Dustin | | Gojowczyk, Peter | | Hanfmann, Yannick | | Heller, Peter | | Jahn, Jeremy | | Kamke, Tobias | | Koepfer, Dominik | | Kohlschreiber, Philipp | | Krawietz, Kevin | | Kuhn, Nicola | | Lenz, Julian | | Maden, Yannick | | Marterer, Maximilian | | Masur, Daniel | | Molleker, Rudolf | | Moraing, Mats | | Otte, Oscar | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard | | Torebko, Peter | | Wessels, Louis | | Zverev, Alexander | | Zverev, Mischa |
| | Grécia (1) |
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| Tsitsipas, Stefano |
| | Hungria (4) |
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| Balazs, Attila | | Fucsovics, Marton | | Piros, Zsombor | | Valkusz, Mate |
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| Índia (6) |
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| Gunneswaran, Prajnesh | | Kadhe, Arjun | | Mukund, Sasikumar | | Myneni, Saketh | | Nagal, Sumit | | Ramanathan, Ramkumar |
| | Israel (2) |
|---|
| Leshem, Edan | | Sela, Dudi |
| | Itália (33) |
|---|
| Arnaboldi, Andrea | | Baldi, Filippo | | Basso, Andrea | | Bega, Alessandro | | Bellotti, Riccardo | | Berrettini, Matteo | | Bolelli, Simone | | Brancaccio, Raul | | Caruana, Liam | | Caruso, Salvatore | | Cecchinato, Marco | | Donati, Matteo | | Fabbiano, Thomas | | Fognini, Fabio | | Gaio, Federico | | Giannessi, Alessandro | | Giustino, Lorenzo | | Lorenzi, Paolo | | Mager, Gianluca | | Marcora, Roberto | | Moroni, Gian Marco | | Musetti, Lorenzo | | Napolitano, Stefano | | Nardi, Luca | | Pellegrino, Andrea | | Quinzi, Gianluigi | | Seppi, Andreas | | Sinner, Jannik | | Sonego, Lorenzo | | Travaglia, Stefano | | Vanni, Luca | | Viola, Matteo | | Zeppieri, Giulio |
| | Japão (14) |
|---|
| Daniel, Taro | | Imai, Shintaro | | Ito, Tatsuma | | Moriya, Hiroki | | Nishikori, Kei | | Nishioka, Yoshihito | | Sekiguchi, Shuichi | | Soeda, Go | | Sugita, Yuichi | | Takahashi, Yusuke | | Tokuda, Renta | | Uchida, Kaichi | | Uchiyama, Yasutaka | | Watanuki, Yosuke |
|
| Cazaquistão (5) |
|---|
| Bublik, Alexander | | Kukushkin, Mikhail | | Popko, Dmitry | | Skatov, Timofey | | Yevseyev, Denis |
| | Letónia (1) |
|---|
| Gulbis, Ernests |
| | Lituânia (1) |
|---|
| Berankis, Ricardas |
| | México (6) |
|---|
| Escobedo, Ernesto | | Gomez, Lucas | | Hank, Tigre | | Lopez Villasenor, Gerardo | | Patino, Luis | | Sanchez, Manuel |
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| | Mônaco (1) |
|---|
| Catarina, Lucas |
| | Marrocos (3) |
|---|
| Ahouda, Amine | | Benchetrit, Elliot | | Ouahab, Lamine |
| | Holanda (7) |
|---|
| Bakker, Thiemo de | | Griekspoor, Tallon | | Haase, Robin | | Rijthoven, Tim van | | Sels, Jelle | | Sijsling, Igor | | Zandschulp, Botic van de |
|
| Nova Zelândia (4) |
|---|
| Sitak, Artem | | Statham, Rubin | | Tearney, Finn | | Venus, Michael |
| | | Peru (1) |
|---|
| Varillas, Juan Pablo |
| | Polónia (3) |
|---|
| Hurkacz, Hubert | | Janowicz, Jerzy | | Majchrzak, Kamil |
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| Portugal (7) |
|---|
| Domingues, Joao | | Elias, Gastao | | Ferreira Silva, Frederico | | Monteiro, Joao | | Oliveira, Goncalo | | Sousa, Joao | | Sousa, Pedro |
| | Roménia (2) |
|---|
| Copil, Marius | | Dima, Dragos |
| | Rússia (16) |
|---|
| Avidzba, Alen | | Donskoy, Evgeny | | Dubrivnyy, Artem | | Gabashvili, Teymuraz | | Kachmazov, Alibek | | Karatsev, Aslan | | Karlovskiy, Evgeny | | Khachanov, Karen | | Kotov, Pavel | | Kravchuk, Konstantin | | Kuznetsov, Andrey | | Medvedev, Daniil | | Nedelko, Ivan | | Rublev, Andrey | | Safiullin, Roman | | Vatutin, Alexey |
| | Sérvia (12) |
|---|
| Cacic, Nikola | | Djere, Laslo | | Djokovic, Novak | | Kecmanovic, Miomir | | Krajinovic, Filip | | Krstin, Pedja | | Lajovic, Dusan | | Milojevic, Nikola | | Petrovic, Danilo | | Tepavac, Marko | | Troicki, Viktor | | Zekic, Miljan |
|
| Eslováquia (7) |
|---|
| Gombos, Norbert | | Horansky, Filip | | Klizan, Martin | | Kovalik, Jozef | | Lacko, Lukas | | Martin, Andrej | | Molcan, Alex |
| | Eslovénia (3) |
|---|
| Bedene, Aljaz | | Kavcic, Blaz | | Rola, Blaz |
| | África do Sul (2) |
|---|
| Anderson, Kevin | | Harris, Lloyd |
| | Coreia do Sul (5) |
|---|
| Chung, Hyeon | | Chung, Yunseong | | Kwon, Soonwoo | | Lee, Duckhee | | Nam, Ji-Sung |
|
| Espanha (30) |
|---|
| Alcaraz, Carlos | | Andujar, Pablo | | Barranco Cosano, Javier | | Bautista Agut, Roberto | | Boluda-Purkiss, Carlos | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Davidovich Fokina, Alejandro | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Gutierrez-Ferrol, Sergio | | Lopez, Feliciano | | Lopez Perez, Enrique | | Martinez, Pedro | | Menendez-Maceiras, Adrian | | Munar, Jaume | | Nadal, Rafael | | Ojeda Lara, Ricardo | | Ortega-Olmedo, Roberto | | Ramos-Vinolas, Albert | | Riba, Pere | | Robredo, Tommy | | Roca Batalla, Oriol | | Samper-Montana, Jordi | | Taberner, Carlos | | Verdasco, Fernando | | Vilella Martinez, Mario | | Zapata Miralles, Bernabe |
| | Suécia (6) |
|---|
| Eriksson, Markus | | Lindell, Christian | | Simonsson, Fred | | Soderlund, Carl | | Ymer, Elias | | Ymer, Mikael |
| | Suíça (8) |
|---|
| Bellier, Antoine | | Ehrat, Sandro | | Federer, Roger | | Huesler, Marc-Andrea | | Laaksonen, Henri | | Marti, Yann | | Nikles, Johan | | Wawrinka, Stan |
| | Taiwan (5) |
|---|
| Jung, Jason | | Lu, Yen-Hsun | | Tseng, Chun-Hsin | | Wu, Tung-Lin | | Yang, Tsung-Hua |
|
| | Turquia (4) |
|---|
| Celikbilek, Altug | | Ilhan, Marsel | | Ilkel, Cem | | Kirkin, Ergi |
| | Ucrânia (5) |
|---|
| Dolgopolov, Alexandr | | Marchenko, Illya | | Nedovyesov, Aleksandr | | Sachko, Vitaliy | | Stakhovsky, Sergiy |
| | Reino Unido (11) |
|---|
| Broady, Liam | | Choinski, Jan | | Clarke, Jay | | Edmund, Kyle | | Evans, Daniel | | Gray, Alastair | | Jubb, Paul | | Klein, Brydan | | Murray, Andy | | Norrie, Cameron | | Ward, James |
|
| Estados Unidos (46) |
|---|
| Altamirano, Collin | | Aragone, JC | | Bangoura, Sekou | | Blanch, Ulises | | Brooksby, Jenson | | Cressy, Maxime | | Donaldson, Jared | | Eubanks, Christopher | | Fratangelo, Bjorn | | Fritz, Taylor | | Giron, Marcos | | Gromley, Cole | | Halebian, Alexios | | Harrison, Christian | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | King, Evan | | King, Kevin | | Klahn, Bradley | | Korda, Sebastian | | Kozlov, Stefan | | Krajicek, Austin | | Krueger, Mitchell | | Kudla, Denis | | Kwiatkowski, Thai-Son | | Kypson, Patrick | | McDonald, Mackenzie | | Mmoh, Michael | | Nakashima, Brandon | | Nava, Emilio | | Novikov, Dennis | | Opelka, Reilly | | Paul, Tommy | | Querrey, Sam | | Ram, Rajeev | | Reinberg, Emil | | Rubin, Noah | | Sandgren, Tennys | | Sarkissian, Alexander | | Shi, Brian | | Sock, Jack | | Svajda, Zachary | | Tiafoe, Frances | | Wolf, J.J. | | Young, Donald |
| | Uruguai (2) |
|---|
| Cuevas, Martin | | Cuevas, Pablo |
| | Uzbequistão (1) |
|---|
| Istomin, Denis |
| | Zimbabué (1) |
|---|
| Garanganga, Takanyi |
|