| Argentina (2) |
|---|
| Del Potro, Juan Martin | | Schwartzman, Diego |
| | Australien (3) |
|---|
| Barty, Ashleigh | | Gavrilova, Daria | | Kyrgios, Nick |
| | | Belgien (2) |
|---|
| Flipkens, Kirsten | | Goffin, David |
|
| Brasilien (1) |
|---|
| Dutra Silva, Rogerio |
| | Bulgarien (1) |
|---|
| Dimitrov, Grigor |
| | Canada (8) |
|---|
| Abanda, Francoise | | Andreescu, Bianca | | Bouchard, Eugenie | | Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Schnur, Brayden | | Shapovalov, Denis |
| |
| Colombia (1) |
|---|
| Duque-Mariño, Mariana |
| | Kroatien (4) |
|---|
| Coric, Borna | | Konjuh, Ana | | Lucic-Baroni, Mirjana | | Vekic, Donna |
| | Tjekkiet (6) |
|---|
| Berdych, Tomas | | Kvitova, Petra | | Pliskova, Karolina | | Safarova, Lucie | | Siniakova, Katerina | | Strycova, Barbora |
| | Danmark (1) |
|---|
| Wozniacki, Caroline |
|
| Frankrig (12) |
|---|
| 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) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (4) |
|---|
| Goerges, Julia | | Kerber, Angelique | | Zverev, Alexander | | Zverev, Mischa |
| |
| | Italien (3) |
|---|
| Fabbiano, Thomas | | Lorenzi, Paolo | | Vinci, Roberta |
| | Japan (3) |
|---|
| Nishikori, Kei | | Osaka, Naomi | | Sugita, Yuichi |
| | Kasakhstan (1) |
|---|
| Putintseva, Yulia |
|
| Letland (2) |
|---|
| Ostapenko, Jelena | | Sevastova, Anastasija |
| | Mexico (1) |
|---|
| Escobedo, Ernesto |
| | | Polen (1) |
|---|
| Radwanska, Agnieszka |
|
| Rumænien (3) |
|---|
| Begu, Irina-Camelia | | Cirstea, Sorana | | Halep, Simona |
| | Rusland (9) |
|---|
| Alexandrova, Ekaterina | | Kasatkina, Daria | | Khachanov, Karen | | Kuznetsova, Svetlana | | Makarova, Ekaterina | | Medvedev, Daniil | | Pavlyuchenkova, Anastasia | | Vesnina, Elena | | Youzhny, Mikhail |
| | Serbien (1) |
|---|
| Troicki, Viktor |
| | Slovakiet (3) |
|---|
| Cibulkova, Dominika | | Gombos, Norbert | | Rybarikova, Magdalena |
|
| Sydafrika (1) |
|---|
| 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 |
| | Schweizisk (1) |
|---|
| Federer, Roger |
|
| Ukraine (2) |
|---|
| Svitolina, Elina | | Tsurenko, Lesia |
| | Storbritannien (3) |
|---|
| Edmund, Kyle | | Konta, Johanna | | Watson, Heather |
| | USA (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 |
|