| Australien (3) |
|---|
| Kyrgios, Nick | | Rodionova, Arina | | Tomljanovic, Ajla |
| | | Kroatien (2) |
|---|
| Karlovic, Ivo | | Vekic, Donna |
| | Tjekkiet (2) |
|---|
| Muchova, Karolina | | Pliskova, Karolina |
|
| Frankrig (4) |
|---|
| Cornet, Alizé | | Herbert, Pierre-Hugues | | Monfils, Gael | | Simon, Gilles |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (2) |
|---|
| Gojowczyk, Peter | | Siegemund, Laura |
| | Italien (2) |
|---|
| Giorgi, Camila | | Seppi, Andreas |
|
| Kasakhstan (1) |
|---|
| Putintseva, Yulia |
| | Letland (1) |
|---|
| Ostapenko, Jelena |
| | | Rusland (2) |
|---|
| Khachanov, Karen | | Kuznetsova, Svetlana |
|
| Sydafrika (1) |
|---|
| Anderson, Kevin |
| | Spanien (3) |
|---|
| Carreno Busta, Pablo | | Muguruza, Garbiñe | | Verdasco, Fernando |
| | | Schweizisk (2) |
|---|
| Bencic, Belinda | | Wawrinka, Stan |
|
| USA (3) |
|---|
| Bellis, CiCi | | Collins, Danielle | | Fritz, Taylor |
|