| Argentina (7) |
|---|
| Berlocq, Carlos | | Del Potro, Juan Martin | | Kicker, Nicolas | | Mayer, Leonardo | | Pella, Guido | | Schwartzman, Diego | | Zeballos, Horacio |
| | Australia (12) |
|---|
| Barty, Ashleigh | | De Minaur, Alex | | Gavrilova, Daria | | Kasatkina, Daria | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Millman, John | | Rodionova, Arina | | Smith, John-Patrick | | Thompson, Jordan | | Tomic, Bernard | | Tomljanovic, Ajla |
| | Austria (2) |
|---|
| Haider-Maurer, Andreas | | Thiem, Dominic |
| |
| Belarus (1) |
|---|
| Sasnovich, Aliaksandra |
| | Belgium (7) |
|---|
| Bemelmans, Ruben | | Darcis, Steve | | Flipkens, Kirsten | | Goffin, David | | Mertens, Elise | | Uytvanck, Alison Van | | Wickmayer, Yanina |
| | Bosnia and Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Brasil (4) |
|---|
| Bellucci, Thomaz | | Dutra Silva, Rogerio | | Haddad Maia, Beatriz | | Monteiro, Thiago |
|
| Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Canada (3) |
|---|
| Bouchard, Eugenie | | Pospisil, Vasek | | Shapovalov, Denis |
| | China (5) |
|---|
| Duan, Ying-Ying | | Peng, Shuai | | Wang, Qiang | | Zhang, Shuai | | Zheng, Saisai |
| | Colombia (1) |
|---|
| Giraldo, Santiago |
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| Croatia (7) |
|---|
| Cilic, Marin | | Coric, Borna | | Karlovic, Ivo | | Konjuh, Ana | | Lucic-Baroni, Mirjana | | Martic, Petra | | Vekic, Donna |
| | Cyprus (1) |
|---|
| Baghdatis, Marcos |
| | Czech Republic (12) |
|---|
| Allertova, Denisa | | Berdych, Tomas | | Kvitova, Petra | | Martincova, Tereza | | Pliskova, Karolina | | Pliskova, Kristyna | | Safarova, Lucie | | Safranek, Vaclav | | Siniakova, Katerina | | Strycova, Barbora | | Vesely, Jiri | | Vondrousova, Marketa |
| | Denmark (1) |
|---|
| Wozniacki, Caroline |
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| Estonia (2) |
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| Kanepi, Kaia | | Kontaveit, Anett |
| | France (19) |
|---|
| Benneteau, Julien | | Blancaneaux, Geoffrey | | Chardy, Jeremy | | Cornet, Alizé | | Dodin, Oceane | | Garcia, Caroline | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Hesse, Amandine | | Mahut, Nicolas | | Mannarino, Adrian | | Millot, Vincent | | Mladenovic, Kristina | | Monfils, Gael | | Paire, Benoit | | Parmentier, Pauline | | Pouille, Lucas | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Germany (17) |
|---|
| Barthel, Mona | | Beck, Annika | | Brown, Dustin | | Goerges, Julia | | Kerber, Angelique | | Kohlschreiber, Philipp | | Lisicki, Sabine | | Maria, Tatjana | | Marterer, Maximilian | | Mayer, Florian | | Petkovic, Andrea | | Stebe, Cedrik-Marcel | | Struff, Jan-Lennard | | Witthoeft, Carina | | Zaja, Anna | | Zverev, Alexander | | Zverev, Mischa |
|
| | Hungary (2) |
|---|
| Babos, Timea | | Fucsovics, Marton |
| | | Italy (9) |
|---|
| Fabbiano, Thomas | | Fognini, Fabio | | Giannessi, Alessandro | | Giorgi, Camila | | Lorenzi, Paolo | | Schiavone, Francesca | | Seppi, Andreas | | Travaglia, Stefano | | Vinci, Roberta |
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| Japan (8) |
|---|
| Daniel, Taro | | Doi, Misaki | | Eguchi, Misa | | Hibino, Nao | | Nara, Kurumi | | Osaka, Naomi | | Ozaki, Risa | | Sugita, Yuichi |
| | Kazakhstan (2) |
|---|
| Kukushkin, Mikhail | | Putintseva, Yulia |
| | Latvia (3) |
|---|
| Gulbis, Ernests | | Ostapenko, Jelena | | Sevastova, Anastasija |
| | Lithuania (1) |
|---|
| Berankis, Ricardas |
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| Luxembourg (1) |
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| Muller, Gilles |
| | Mexico (1) |
|---|
| Escobedo, Ernesto |
| | | Netherlands (4) |
|---|
| Bertens, Kiki | | Haase, Robin | | Hogenkamp, Richel | | Kerkhove, Lesley |
|
| Paraguay (1) |
|---|
| Cepede Royg, Veronica |
| | Poland (2) |
|---|
| Linette, Magda | | Radwanska, Agnieszka |
| | | Puerto Rico (1) |
|---|
| Puig, Monica |
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| Romania (7) |
|---|
| Begu, Irina-Camelia | | Bogdan, Ana | | Buzarnescu, Mihaela | | Cirstea, Sorana | | Copil, Marius | | Halep, Simona | | Niculescu, Monica |
| | Russia (17) |
|---|
| Alexandrova, Ekaterina | | Blinkova, Anna | | Donskoy, Evgeny | | Khachanov, Karen | | Kuznetsov, Andrey | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Rodina, Evgeniya | | Rublev, Andrey | | Sharapova, Maria | | Tursunov, Dmitry | | Vesnina, Elena | | Vikhlyantseva, Natalia | | Youzhny, Mikhail | | Zhuk, Sofya |
| | Serbia (5) |
|---|
| Jankovic, Jelena | | Krunic, Aleksandra | | Lajovic, Dusan | | Tipsarevic, Janko | | Troicki, Viktor |
| | Slovakia (6) |
|---|
| Cepelova, Jana | | Cibulkova, Dominika | | Gombos, Norbert | | Kuzmova, Viktoria | | Lacko, Lukas | | Rybarikova, Magdalena |
|
| Slovenia (2) |
|---|
| Bedene, Aljaz | | Kavcic, Blaz |
| | South Africa (1) |
|---|
| Anderson, Kevin |
| | South Korea (1) |
|---|
| Chung, Hyeon |
| | Spain (13) |
|---|
| Almagro, Nicolas | | Arruabarrena, Lara | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Lopez, Feliciano | | Menendez-Maceiras, Adrian | | Muguruza, Garbiñe | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Sorribes Tormo, Sara | | Suárez Navarro, Carla | | Verdasco, Fernando |
|
| Sweden (2) |
|---|
| Larsson, Johanna | | Peterson, Rebecca |
| | Swiss (3) |
|---|
| Federer, Roger | | Golubic, Viktorija | | Laaksonen, Henri |
| | | Tunisia (2) |
|---|
| Jabeur, Ons | | Jaziri, Malek |
|
| | Ukraine (4) |
|---|
| Dolgopolov, Alexandr | | Kozlova, Kateryna | | Svitolina, Elina | | Tsurenko, Lesia |
| | United Kingdom (4) |
|---|
| Edmund, Kyle | | Konta, Johanna | | Norrie, Cameron | | Watson, Heather |
| | United States (41) |
|---|
| Aragone, JC | | Bellis, CiCi | | Boserup, Julia | | Brady, Jennifer | | Brengle, Madison | | Davis, Lauren | | Day, Kayla | | Donaldson, Jared | | Eubanks, Christopher | | Fratangelo, Bjorn | | Fritz, Taylor | | Gibbs, Nicole | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kenin, Sofia | | Keys, Madison | | Kiick, Allie | | King, Evan | | Kratzer, Ashley | | Kwiatkowski, Thai-Son | | Kypson, Patrick | | Lao, Danielle | | Lepchenko, Varvara | | Liu, Claire | | McHale, Christina | | Minor, Brienne | | Paul, Tommy | | Querrey, Sam | | Riske, Alison | | Rogers, Shelby | | Sandgren, Tennys | | Smyczek, Tim | | Sock, Jack | | Stephens, Sloane | | Tiafoe, Frances | | Townsend, Taylor | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Venus | | Young, Donald |
|
| | Uzbekistan (1) |
|---|
| Istomin, Denis |
|