| Argentina (7) |
|---|
| Andreozzi, Guido | | Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australia (15) |
|---|
| Barty, Ashleigh | | Bolt, Alex | | De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Gavrilova, Daria | | Kasatkina, Daria | | Kubler, Jason | | Kyrgios, Nick | | Millman, John | | Smith, John-Patrick | | Stosur, Samantha | | Thompson, Jordan | | Tomic, Bernard | | Tomljanovic, Ajla |
| | Austria (2) |
|---|
| Novak, Dennis | | Thiem, Dominic |
| | Belarus (4) |
|---|
| Azarenka, Victoria | | Lapko, Vera | | Sabalenka, Aryna | | Sasnovich, Aliaksandra |
|
| Belgium (6) |
|---|
| Bemelmans, Ruben | | Flipkens, Kirsten | | Goffin, David | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Bosnia and Herzegovina (2) |
|---|
| Basic, Mirza | | Dzumhur, Damir |
| | Bulgaria (2) |
|---|
| Dimitrov, Grigor | | Tomova, Viktoriya |
| | Canada (5) |
|---|
| Bouchard, Eugenie | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Shapovalov, Denis |
|
| Chile (2) |
|---|
| Garin, Christian | | Jarry, Nicolas |
| | China (5) |
|---|
| Peng, Shuai | | Wang, Qiang | | Wang, Yafan | | Zhang, Shuai | | Zheng, Saisai |
| | Colombia (1) |
|---|
| Duque-Mariño, Mariana |
| | Croatia (7) |
|---|
| Cilic, Marin | | Coric, Borna | | Fett, Jana | | Karlovic, Ivo | | Konjuh, Ana | | Martic, Petra | | Vekic, Donna |
|
| Cyprus (1) |
|---|
| Baghdatis, Marcos |
| | Czech Republic (11) |
|---|
| Allertova, Denisa | | Kvitova, Petra | | Pliskova, Karolina | | Pliskova, Kristyna | | Safarova, Lucie | | Siniakova, Katerina | | Smitkova, Tereza | | Stefkova, Barbora | | Strycova, Barbora | | Vesely, Jiri | | Vondrousova, Marketa |
| | Denmark (1) |
|---|
| Wozniacki, Caroline |
| | Estonia (2) |
|---|
| Kanepi, Kaia | | Kontaveit, Anett |
|
| France (16) |
|---|
| Barrere, Gregoire | | Benneteau, Julien | | Bonzi, Benjamin | | Chardy, Jeremy | | Cornet, Alizé | | Garcia, Caroline | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mannarino, Adrian | | Mladenovic, Kristina | | Monfils, Gael | | Paire, Benoit | | Parmentier, Pauline | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles |
| | Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Germany (15) |
|---|
| Barthel, Mona | | Goerges, Julia | | Gojowczyk, Peter | | Kerber, Angelique | | Kohlschreiber, Philipp | | Lottner, Antonia | | Maden, Yannick | | Maria, Tatjana | | Marterer, Maximilian | | Mayer, Florian | | Petkovic, Andrea | | Struff, Jan-Lennard | | Witthoeft, Carina | | Zverev, Alexander | | Zverev, Mischa |
| | Greece (2) |
|---|
| Sakkari, Maria | | Tsitsipas, Stefano |
|
| Hungary (2) |
|---|
| Babos, Timea | | Fucsovics, Marton |
| | | | Italy (10) |
|---|
| Berrettini, Matteo | | Bolelli, Simone | | Cecchinato, Marco | | Fabbiano, Thomas | | Fognini, Fabio | | Giorgi, Camila | | Lorenzi, Paolo | | Seppi, Andreas | | Sonego, Lorenzo | | Travaglia, Stefano |
|
| Japan (6) |
|---|
| Daniel, Taro | | Nara, Kurumi | | Nishikori, Kei | | Nishioka, Yoshihito | | Osaka, Naomi | | Sugita, Yuichi |
| | Kazakhstan (3) |
|---|
| Diyas, Zarina | | Kukushkin, Mikhail | | Putintseva, Yulia |
| | Latvia (3) |
|---|
| Gulbis, Ernests | | Ostapenko, Jelena | | Sevastova, Anastasija |
| | Lithuania (1) |
|---|
| Berankis, Ricardas |
|
| Luxembourg (1) |
|---|
| Muller, Gilles |
| | | Netherlands (3) |
|---|
| Bertens, Kiki | | Haase, Robin | | Rus, Arantxa |
| | Paraguay (1) |
|---|
| Cepede Royg, Veronica |
|
| Poland (3) |
|---|
| Hurkacz, Hubert | | Linette, Magda | | Radwanska, Agnieszka |
| | Portugal (2) |
|---|
| Elias, Gastao | | Sousa, Joao |
| | Puerto Rico (1) |
|---|
| Puig, Monica |
| | Romania (9) |
|---|
| Begu, Irina-Camelia | | Bogdan, Ana | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Copil, Marius | | Dulgheru, Alexandra | | Halep, Simona | | Niculescu, Monica | | Ruse, Elena-Gabriela |
|
| Russia (14) |
|---|
| Alexandrova, Ekaterina | | Blinkova, Anna | | Diatchenko, Vitalia | | Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Rodina, Evgeniya | | Sharapova, Maria | | Vikhlyantseva, Natalia | | Youzhny, Mikhail | | Zvonareva, Vera |
| | Serbia (5) |
|---|
| Djere, Laslo | | Djokovic, Novak | | Krajinovic, Filip | | Krunic, Aleksandra | | Lajovic, Dusan |
| | Slovakia (6) |
|---|
| Cibulkova, Dominika | | Gombos, Norbert | | Kuzmova, Viktoria | | Lacko, Lukas | | Rybarikova, Magdalena | | Schmiedlova, Anna Karolina |
| | Slovenia (2) |
|---|
| Bedene, Aljaz | | Hercog, Polona |
|
| South Africa (1) |
|---|
| Anderson, Kevin |
| | Spain (12) |
|---|
| Arruabarrena, Lara | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Lopez, Feliciano | | Muguruza, Garbiñe | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Sorribes Tormo, Sara | | Suárez Navarro, Carla | | Verdasco, Fernando |
| | Sweden (2) |
|---|
| Larsson, Johanna | | Peterson, Rebecca |
| | Swiss (5) |
|---|
| Bencic, Belinda | | Federer, Roger | | Golubic, Viktorija | | Voegele, Stefanie | | Wawrinka, Stan |
|
| Taiwan (2) |
|---|
| Hsieh, Su-Wei | | Jung, Jason |
| | Thailand (1) |
|---|
| Kumkhum, Luksika |
| | Tunisia (2) |
|---|
| Jabeur, Ons | | Jaziri, Malek |
| | Ukraine (5) |
|---|
| Bondarenko, Kateryna | | Kozlova, Kateryna | | Stakhovsky, Sergiy | | Svitolina, Elina | | Tsurenko, Lesia |
|
| United Kingdom (12) |
|---|
| Boulter, Katie | | Broady, Liam | | Broady, Naomi | | Clarke, Jay | | Dart, Harriet | | Dunne, Katy | | Edmund, Kyle | | Konta, Johanna | | Norrie, Cameron | | Swan, Katie | | Taylor, Gabriella | | Watson, Heather |
| | United States (31) |
|---|
| Brady, Jennifer | | Brengle, Madison | | Collins, Danielle | | Dolehide, Caroline | | Donaldson, Jared | | Fritz, Taylor | | Harrison, Christian | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kenin, Sofia | | Keys, Madison | | Klahn, Bradley | | Kudla, Denis | | Lepchenko, Varvara | | Liu, Claire | | McDonald, Mackenzie | | McHale, Christina | | Mmoh, Michael | | Pera, Bernarda | | Querrey, Sam | | Riske, Alison | | Sandgren, Tennys | | Sock, Jack | | Stephens, Sloane | | Tiafoe, Frances | | Townsend, Taylor | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Serena | | Williams, Venus |
| | | Uzbekistan (1) |
|---|
| Istomin, Denis |
|