| Argentinien (2) |
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| Del Potro, Juan Martin | | Schwartzman, Diego |
| | Australien (3) |
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| Barty, Ashleigh | | Gavrilova, Daria | | Kyrgios, Nick |
| | Österreich (1) |
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| Thiem, Dominic |
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| Flipkens, Kirsten | | Goffin, David |
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| Brasilien (1) |
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| Dutra Silva, Rogerio |
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| Dimitrov, Grigor |
| | Kanada (8) |
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| Abanda, Francoise | | Andreescu, Bianca | | Bouchard, Eugenie | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Schnur, Brayden | | Shapovalov, Denis |
| |
| Kolumbien (1) |
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| Duque-Mariño, Mariana |
| | Kroatien (4) |
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| Coric, Borna | | Konjuh, Ana | | Lucic-Baroni, Mirjana | | Vekic, Donna |
| | Tschechien (6) |
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| Berdych, Tomas | | Kvitova, Petra | | Pliskova, Karolina | | Safarova, Lucie | | Siniakova, Katerina | | Strycova, Barbora |
| | Dänemark (1) |
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| Wozniacki, Caroline |
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| Frankreich (12) |
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| Cornet, Alizé | | Dodin, Oceane | | Garcia, Caroline | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Mannarino, Adrian | | Millot, Vincent | | Mladenovic, Kristina | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
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| Basilashvili, Nikoloz |
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| Goerges, Julia | | Kerber, Angelique | | Zverev, Alexander | | Zverev, Mischa |
| |
| | Italien (3) |
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| Fabbiano, Thomas | | Lorenzi, Paolo | | Vinci, Roberta |
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| Nishikori, Kei | | Osaka, Naomi | | Sugita, Yuichi |
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| Putintseva, Yulia |
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| Lettland (2) |
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| Ostapenko, Jelena | | Sevastova, Anastasija |
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| Escobedo, Ernesto |
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| Haase, Robin |
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| Radwanska, Agnieszka |
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| Rumänien (3) |
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| Begu, Irina-Camelia | | Cirstea, Sorana | | Halep, Simona |
| | Russland (9) |
|---|
| Alexandrova, Ekaterina | | Kasatkina, Daria | | Khachanov, Karen | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Vesnina, Elena | | Youzhny, Mikhail |
| | Serbien (1) |
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| Troicki, Viktor |
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| Cibulkova, Dominika | | Gombos, Norbert | | Rybarikova, Magdalena |
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| Südafrika (1) |
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| Anderson, Kevin |
| | | Spanien (9) |
|---|
| Arruabarrena, Lara | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Lopez, Feliciano | | Muguruza, Garbiñe | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Suárez Navarro, Carla |
| | Schweiz (1) |
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| Federer, Roger |
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| Ukraine (2) |
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| Svitolina, Elina | | Tsurenko, Lesia |
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| Edmund, Kyle | | Konta, Johanna | | Watson, Heather |
| | Vereinigte Staaten (19) |
|---|
| Bellis, CiCi | | Davis, Lauren | | Donaldson, Jared | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Keys, Madison | | Lepchenko, Varvara | | Opelka, Reilly | | Querrey, Sam | | Riske, Alison | | Smyczek, Tim | | Sock, Jack | | Stephens, Sloane | | Tiafoe, Frances | | Vandeweghe, Coco | | Vickery, Sachia | | Williams, Venus | | Young, Donald |
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