| Argentina (3) |
|---|
| Londero, Juan Ignacio | | Mayer, Leonardo | | Schwartzman, Diego |
| | Australia (2) |
|---|
| De Minaur, Alex | | Popyrin, Alexei |
| | | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
|
| | Croazia (3) |
|---|
| Cilic, Marin | | Martic, Petra | | Vekic, Donna |
| | Francia (6) |
|---|
| Gasquet, Richard | | Herbert, Pierre-Hugues | | Mladenovic, Kristina | | Paire, Benoit | | Parry, Diane | | Tsonga, Jo-Wilfried |
| | Germania (1) |
|---|
| Siegemund, Laura |
|
| Italia (1) |
|---|
| Berrettini, Matteo |
| | Giappone (1) |
|---|
| Nishikori, Kei |
| | |
| | Slovacchia (1) |
|---|
| Kuzmova, Viktoria |
| | Spagna (2) |
|---|
| Carreno Busta, Pablo | | Muguruza, Garbiñe |
| | Svezia (2) |
|---|
| Larsson, Johanna | | Peterson, Rebecca |
|
| Svizzera (2) |
|---|
| Bencic, Belinda | | Wawrinka, Stan |
|