| Argentina (8) |
|---|
| Andreozzi, Guido | | Del Potro, Juan Martin | | Delbonis, Federico | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego | | Trungelliti, Marco | | Zeballos, Horacio |
| | Australia (13) |
|---|
| Barty, Ashleigh | | De Minaur, Alex | | Duckworth, James | | Ebden, Matthew | | Gavrilova, Daria | | Kasatkina, Daria | | Kyrgios, Nick | | Millman, John | | Stosur, Samantha | | Thompson, Jordan | | Tomic, Bernard | | Tomljanovic, Ajla | | Wallace, Isabelle |
| | Austria (2) |
|---|
| Haider-Maurer, Andreas | | Thiem, Dominic |
| | Belarus (4) |
|---|
| Azarenka, Victoria | | Ivashka, Ilya | | 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 |
| | Brasil (2) |
|---|
| Bellucci, Thomaz | | Dutra Silva, Rogerio |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
|
| Canada (3) |
|---|
| Polansky, Peter | | Pospisil, Vasek | | Shapovalov, Denis |
| | | China (6) |
|---|
| Duan, Ying-Ying | | Peng, Shuai | | Wang, Qiang | | Wang, Yafan | | Zhang, Shuai | | Zheng, Saisai |
| | Colombia (2) |
|---|
| Duque-Mariño, Mariana | | Giraldo, Santiago |
|
| Croatia (6) |
|---|
| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo | | Konjuh, Ana | | Martic, Petra | | Vekic, Donna |
| | Cyprus (1) |
|---|
| Baghdatis, Marcos |
| | Czech Republic (12) |
|---|
| Allertova, Denisa | | Berdych, Tomas | | Krejcikova, Barbora | | Kvitova, Petra | | Pavlasek, Adam | | Pliskova, Karolina | | Pliskova, Kristyna | | Safarova, Lucie | | Siniakova, Katerina | | Strycova, Barbora | | Vesely, Jiri | | Vondrousova, Marketa |
| | Denmark (1) |
|---|
| Wozniacki, Caroline |
|
| | Estonia (3) |
|---|
| Kanepi, Kaia | | Kontaveit, Anett | | Zopp, Jurgen |
| | France (24) |
|---|
| Barrere, Gregoire | | Benneteau, Julien | | Chardy, Jeremy | | Cornet, Alizé | | Dodin, Oceane | | Ferro, Fiona | | Garcia, Caroline | | Gasquet, Richard | | Georges, Myrtille | | Hemery, Calvin | | Herbert, Pierre-Hugues | | Hesse, Amandine | | Janvier, Maxime | | Mahut, Nicolas | | Mannarino, Adrian | | Mladenovic, Kristina | | Monfils, Gael | | Moutet, Corentin | | Paire, Benoit | | Paquet, Chloe | | Parmentier, Pauline | | Ponchet, Jessika | | Pouille, Lucas | | Simon, Gilles |
| | Georgia (1) |
|---|
| Basilashvili, Nikoloz |
|
| Germany (15) |
|---|
| Barthel, Mona | | Goerges, Julia | | Gojowczyk, Peter | | Kerber, Angelique | | Kohlschreiber, Philipp | | Maria, Tatjana | | Marterer, Maximilian | | Mayer, Florian | | Otte, Oscar | | Petkovic, Andrea | | Siegemund, Laura | | Struff, Jan-Lennard | | Witthoeft, Carina | | Zverev, Alexander | | Zverev, Mischa |
| | Greece (2) |
|---|
| Sakkari, Maria | | Tsitsipas, Stefano |
| | Hungary (2) |
|---|
| Babos, Timea | | Fucsovics, Marton |
| | India (2) |
|---|
| Bhambri, Yuki | | Gunneswaran, Prajnesh |
|
| | Italy (11) |
|---|
| Berrettini, Matteo | | Bolelli, Simone | | Cecchinato, Marco | | Chiesa, Deborah | | Errani, Sara | | Fabbiano, Thomas | | Fognini, Fabio | | Giorgi, Camila | | Lorenzi, Paolo | | Schiavone, Francesca | | Seppi, Andreas |
| | Japan (5) |
|---|
| 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 (2) |
|---|
| Minella, Mandy | | Muller, Gilles |
| |
| Morocco (1) |
|---|
| Benchetrit, Elliot |
| | Netherlands (4) |
|---|
| Bertens, Kiki | | Haase, Robin | | Hogenkamp, Richel | | Rus, Arantxa |
| | | Paraguay (1) |
|---|
| Cepede Royg, Veronica |
|
| Poland (3) |
|---|
| Frech, Magdalena | | Hurkacz, Hubert | | Linette, Magda |
| | | Romania (7) |
|---|
| Begu, Irina-Camelia | | Bogdan, Ana | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Copil, Marius | | Dulgheru, Alexandra | | Halep, Simona |
| | Russia (11) |
|---|
| Alexandrova, Ekaterina | | Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Sharapova, Maria | | Vesnina, Elena | | Vikhlyantseva, Natalia | | Youzhny, Mikhail |
|
| Serbia (5) |
|---|
| Djere, Laslo | | Djokovic, Novak | | Krunic, Aleksandra | | Lajovic, Dusan | | Troicki, Viktor |
| | Slovakia (7) |
|---|
| Cibulkova, Dominika | | Klizan, Martin | | Kovalik, Jozef | | Kucova, Kristina | | Kuzmova, Viktoria | | Rybarikova, Magdalena | | Schmiedlova, Anna Karolina |
| | Slovenia (3) |
|---|
| Bedene, Aljaz | | Hercog, Polona | | Jakupovic, Dalila |
| | South Africa (1) |
|---|
| Anderson, Kevin |
|
| Spain (16) |
|---|
| Andujar, Pablo | | Arruabarrena, Lara | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia Perez, Georgina | | Garcia-Lopez, Guillermo | | Lopez, Feliciano | | Muguruza, Garbiñe | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Suárez Navarro, Carla | | Taberner, Carlos | | Verdasco, Fernando |
| | Sweden (3) |
|---|
| Larsson, Johanna | | Peterson, Rebecca | | Ymer, Elias |
| | Swiss (4) |
|---|
| Bencic, Belinda | | Golubic, Viktorija | | Voegele, Stefanie | | Wawrinka, Stan |
| | Taiwan (2) |
|---|
| Hsieh, Su-Wei | | Lu, Yen-Hsun |
|
| Thailand (1) |
|---|
| Kumkhum, Luksika |
| | | Ukraine (5) |
|---|
| Bondarenko, Kateryna | | Kozlova, Kateryna | | Stakhovsky, Sergiy | | Svitolina, Elina | | Tsurenko, Lesia |
| | United Kingdom (4) |
|---|
| Edmund, Kyle | | Konta, Johanna | | Norrie, Cameron | | Watson, Heather |
|
| United States (30) |
|---|
| Brady, Jennifer | | Brengle, Madison | | Collins, Danielle | | Dolehide, Caroline | | Donaldson, Jared | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kenin, Sofia | | Keys, Madison | | King, Vania | | Kudla, Denis | | Lepchenko, Varvara | | Mattek-Sands, Bethanie | | McHale, Christina | | Min, Grace | | Pera, Bernarda | | Querrey, Sam | | Riske, Alison | | Rubin, Noah | | Sandgren, Tennys | | Sock, Jack | | Stephens, Sloane | | Tiafoe, Frances | | Townsend, Taylor | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Serena | | Williams, Venus |
| | | Uzbekistan (1) |
|---|
| Istomin, Denis |
|