| Argentina (19) |
|---|
| Andreozzi, Guido | | Arguello, Facundo | | Bagnis, Facundo | | Berlocq, Carlos | | Cachin, Pedro | | Coria, Federico | | Del Potro, Juan Martin | | Delbonis, Federico | | Gonzalez, Maximo | | Kicker, Nicolas | | Lipovsek Puches, Tomas | | Mayer, Leonardo | | Monaco, Juan | | Olivo, Renzo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco | | Velotti, Agustin | | Zeballos, Horacio |
| | Austrália (20) |
|---|
| Barton, Matthew | | Bolt, Alex | | De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Groth, Sam | | Jasika, Omar | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Matosevic, Marinko | | Millman, John | | Mott, Blake | | O'Connell, Christopher | | Polmans, Marc | | Santillan, Akira | | Saville, Luke | | Smith, John-Patrick | | Thompson, Jordan | | Tomic, Bernard | | Whittington, Andrew |
| | Áustria (7) |
|---|
| Haider-Maurer, Andreas | | Linzer, Michael | | Melzer, Gerald | | Melzer, Jurgen | | Novak, Dennis | | Ofner, Sebastian | | Thiem, Dominic |
| |
| Bielorrússia (3) |
|---|
| Gerasimov, Egor | | Ignatik, Uladzimir | | Ivashka, Ilya |
| | Bélgica (11) |
|---|
| Authom, Maxime | | Bemelmans, Ruben | | Coppejans, Kimmer | | Darcis, Steve | | Geens, Clement | | Gigounon, Germain | | Goffin, David | | Greef, Arthur De | | Loore, Joris De | | Mertens, Yannick | | Reuter, Yannik |
| | Bósnia Herzegovina (3) |
|---|
| Basic, Mirza | | Dzumhur, Damir | | Setkic, Aldin |
| | Brasil (8) |
|---|
| Bellucci, Thomaz | | Clezar, Guilherme | | Dutra Silva, Rogerio | | Ghem, Andre | | Luz, Orlando | | Monteiro, Thiago | | Souza, Joao | | Zampieri, Caio |
|
| Bulgária (4) |
|---|
| Dimitrov, Grigor | | Kuzmanov, Dimitar | | Lazarov, Alexandar | | Lazov, Alexandar |
| | Canadá (9) |
|---|
| Bester, Philip | | Dancevic, Frank | | Diez, Steven | | Peliwo, Filip | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Schnur, Brayden | | Shapovalov, Denis |
| | Chile (3) |
|---|
| Garin, Christian | | Jarry, Nicolas | | Lama, Gonzalo |
| | China (6) |
|---|
| Bai, Yan | | Li, Zhe | | Wu, Di | | Wu, Yibing | | Zhang, Ze | | Zhang, Zhizhen |
|
| Colômbia (4) |
|---|
| Falla, Alejandro | | Giraldo, Santiago | | Gonzalez, Alejandro | | Struvay, Eduardo |
| | Croácia (8) |
|---|
| Cilic, Marin | | Coric, Borna | | Dodig, Ivan | | Karlovic, Ivo | | Mektic, Nikola | | Mesaros, Kristijan | | Serdarusic, Nino | | Skugor, Franko |
| | Chipre (2) |
|---|
| Baghdatis, Marcos | | Chrysochos, Petros |
| | República Checa (12) |
|---|
| Berdych, Tomas | | Hernych, Jan | | Jaloviec, Marek | | Kolar, Zdenek | | Konecny, Michal | | Mertl, Jan | | Pavlasek, Adam | | Rosol, Lukas | | Safranek, Vaclav | | Satral, Jan | | Stepanek, Radek | | Vesely, Jiri |
|
| República Dominicana (2) |
|---|
| Estrella Burgos, Victor | | Hernandez-Fernandez, Jose |
| | Equador (4) |
|---|
| Escobar, Gonzalo | | Gomez, Emilio | | Lapentti, Giovanni | | Quiroz, Roberto |
| | Egipto (1) |
|---|
| Safwat, Mohamed |
| | El Salvador (1) |
|---|
| Arevalo, Marcelo |
|
| | França (36) |
|---|
| Barrere, Gregoire | | Benneteau, Julien | | Blancaneaux, Geoffrey | | Bonzi, Benjamin | | Bourgue, Mathias | | Chardy, Jeremy | | De Schepper, Kenny | | Doumbia, Sadio | | Eysseric, Jonathan | | Gasquet, Richard | | Guez, David | | Halys, Quentin | | Hamou, Maxime | | Hemery, Calvin | | Herbert, Pierre-Hugues | | Janvier, Maxime | | Lamasine, Tristan | | Lestienne, Constant | | Lokoli, Laurent | | Mahut, Nicolas | | Mannarino, Adrian | | Martin, Fabrice | | Mathieu, Paul-Henri | | Michon, Axel | | Millot, Vincent | | Monfils, Gael | | Muller, Alexandre | | Olivetti, Albano | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Roger-Vasselin, Edouard | | Sakharov, Gleb | | Sidorenko, Alexandre | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Geórgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Alemanha (28) |
|---|
| Altmaier, Daniel | | Bachinger, Matthias | | Becker, Benjamin | | Berrer, Michael | | Brands, Daniel | | Brown, Dustin | | Gojowczyk, Peter | | Haas, Tommy | | Hanfmann, Yannick | | Jahn, Jeremy | | Kamke, Tobias | | Koepfer, Dominik | | Kohlschreiber, Philipp | | Krawietz, Kevin | | Kuhn, Nicola | | Maden, Yannick | | Marterer, Maximilian | | Masur, Daniel | | Mayer, Florian | | Moeller, Marvin | | Molleker, Rudolf | | Puetz, Tim | | Sieber, Marc | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard | | Wessels, Louis | | Zverev, Alexander | | Zverev, Mischa |
|
| Grécia (1) |
|---|
| Tsitsipas, Stefano |
| | Hungria (2) |
|---|
| Balazs, Attila | | Fucsovics, Marton |
| | Índia (4) |
|---|
| Bhambri, Yuki | | Gunneswaran, Prajnesh | | Myneni, Saketh | | Ramanathan, Ramkumar |
| | Irlanda (2) |
|---|
| Barry, Sam | | McGee, James |
|
| Israel (3) |
|---|
| Leshem, Edan | | Sela, Dudi | | Weintraub, Amir |
| | Itália (23) |
|---|
| Arnaboldi, Andrea | | Bega, Alessandro | | Bellotti, Riccardo | | Berrettini, Matteo | | Bolelli, Simone | | Caruso, Salvatore | | Cecchinato, Marco | | Donati, Matteo | | Fabbiano, Thomas | | Fognini, Fabio | | Gaio, Federico | | Giannessi, Alessandro | | Giustino, Lorenzo | | Lorenzi, Paolo | | Mager, Gianluca | | Marcora, Roberto | | Napolitano, Stefano | | Quinzi, Gianluigi | | Seppi, Andreas | | Sonego, Lorenzo | | Travaglia, Stefano | | Vanni, Luca | | Volandri, Filippo |
| | Japão (11) |
|---|
| Daniel, Taro | | Ito, Tatsuma | | Kibi, Yuya | | Moriya, Hiroki | | Niki, Takuto | | Nishikori, Kei | | Nishioka, Yoshihito | | Soeda, Go | | Sugita, Yuichi | | Takahashi, Yusuke | | Uchiyama, Yasutaka |
| | Cazaquistão (4) |
|---|
| Bublik, Alexander | | Golubev, Andrey | | Kukushkin, Mikhail | | Popko, Dmitry |
|
| Letónia (1) |
|---|
| Gulbis, Ernests |
| | Lituânia (2) |
|---|
| Berankis, Ricardas | | Grigelis, Laurynas |
| | Luxemburgo (1) |
|---|
| Muller, Gilles |
| | México (6) |
|---|
| Escobedo, Ernesto | | Garza, Daniel | | Gomez, Lucas | | Hank, Tigre | | Patino, Luis | | Sanchez, Manuel |
|
| | Mônaco (1) |
|---|
| Balleret, Benjamin |
| | Marrocos (3) |
|---|
| Ahouda, Amine | | El Amrani, Reda | | Ouahab, Lamine |
| | Holanda (7) |
|---|
| Bakker, Thiemo de | | Duim, Antal van der | | Griekspoor, Tallon | | Haase, Robin | | Huta Galung, Jesse | | Sijsling, Igor | | Zandschulp, Botic van de |
|
| Nova Zelândia (4) |
|---|
| Sitak, Artem | | Statham, Jose | | Tearney, Finn | | Venus, Michael |
| | | Polónia (4) |
|---|
| Janowicz, Jerzy | | Kubot, Lukasz | | Majchrzak, Kamil | | Przysiezny, Michal |
| | Portugal (5) |
|---|
| Domingues, Joao | | Elias, Gastao | | Silva, Frederico Ferreira | | Sousa, Joao | | Sousa, Pedro |
|
| Qatar (1) |
|---|
| Zayid, Mubarak Shannan |
| | Roménia (3) |
|---|
| Copil, Marius | | Hanescu, Victor | | Ungur, Adrian |
| | Rússia (14) |
|---|
| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Karatsev, Aslan | | Khachanov, Karen | | Kravchuk, Konstantin | | Kudryavtsev, Alexander | | Kuznetsov, Andrey | | Medvedev, Daniil | | Rublev, Andrey | | Safiullin, Roman | | Tursunov, Dmitry | | Tyurnev, Evgeny | | Vatutin, Alexey | | Youzhny, Mikhail |
| | Sérvia (11) |
|---|
| Cacic, Nikola | | Djere, Laslo | | Djokovic, Novak | | Krajinovic, Filip | | Krstin, Pedja | | Lajovic, Dusan | | Milojevic, Nikola | | Tepavac, Marko | | Tipsarevic, Janko | | Troicki, Viktor | | Zekic, Miljan |
|
| Eslováquia (5) |
|---|
| Gombos, Norbert | | Klizan, Martin | | Kovalik, Jozef | | Lacko, Lukas | | Martin, Andrej |
| | Eslovénia (4) |
|---|
| Bedene, Aljaz | | Kavcic, Blaz | | Rola, Blaz | | Zemlja, Grega |
| | África do Sul (2) |
|---|
| Anderson, Kevin | | Harris, Lloyd |
| | Coreia do Sul (2) |
|---|
| Chung, Hyeon | | Lee, Duckhee |
|
| Espanha (24) |
|---|
| Almagro, Nicolas | | Andujar, Pablo | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Cervantes, Inigo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Gimeno-Traver, Daniel | | Granollers, Marcel | | Lopez, Feliciano | | Lopez-Perez, Enrique | | Menendez-Maceiras, Adrian | | Montanes, Albert | | Munar, Jaume | | Munoz de la Nava, Daniel | | Nadal, Rafael | | Ojeda Lara, Ricardo | | Ortega-Olmedo, Roberto | | Ramos-Vinolas, Albert | | Riba, Pere | | Robredo, Tommy | | Samper-Montana, Jordi | | Verdasco, Fernando |
| | Suécia (6) |
|---|
| Arvidsson, Isak | | Lindell, Christian | | Simonsson, Fred | | Soderlund, Carl | | Ymer, Elias | | Ymer, Mikael |
| | Suíça (7) |
|---|
| Bellier, Antoine | | Chiudinelli, Marco | | Federer, Roger | | Laaksonen, Henri | | Marti, Yann | | Nikles, Johan | | Wawrinka, Stan |
| | Taiwan (4) |
|---|
| Chen, Ti | | Jung, Jason | | Lu, Yen-Hsun | | Wang, Jimmy |
|
| | Turquia (3) |
|---|
| Ilhan, Marsel | | Ilkel, Cem | | Yuksel, Anil |
| | Ucrânia (4) |
|---|
| Dolgopolov, Alexandr | | Marchenko, Illya | | Nedovyesov, Aleksandr | | Stakhovsky, Sergiy |
| | Emirados Árabes Unidos (1) |
|---|
| Alawadhi, Omar |
|
| Reino Unido (11) |
|---|
| Broady, Liam | | Choinski, Jan | | Corrie, Edward | | Edmund, Kyle | | Evans, Daniel | | Klein, Brydan | | Murray, Andy | | Norrie, Cameron | | Ward, Alexander | | Ward, James | | Willis, Marcus |
| | Estados Unidos (37) |
|---|
| Aragone, JC | | Baker, Brian | | Bangoura, Sekou | | Donaldson, Jared | | Eubanks, Christopher | | Fratangelo, Bjorn | | Fritz, Taylor | | Halebian, Alexios | | Harrison, Christian | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | King, Evan | | Kozlov, Stefan | | Krajicek, Austin | | Krueger, Mitchell | | Kudla, Denis | | Kuznetsov, Alex | | Kwiatkowski, Thai-Son | | Kypson, Patrick | | McDonald, Mackenzie | | Mmoh, Michael | | Nguyen, Daniel | | Novikov, Dennis | | Opelka, Reilly | | Paul, Tommy | | Querrey, Sam | | Ram, Rajeev | | Rubin, Noah | | Sandgren, Tennys | | Sarkissian, Alexander | | Shane, Ryan | | Smith, Austin | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
| | | Uzbequistão (1) |
|---|
| Istomin, Denis |
|