| Argentina (4) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Coria, Federico | | Etcheverry, Tomas Martin |
| | Australia (2) |
|---|
| De Minaur, Alex | | Duckworth, James |
| | Danimarca (1) |
|---|
| Rune, Holger |
| | Francia (10) |
|---|
| Barrere, Gregoire | | Gaston, Hugo | | Guinard, Manuel | | Humbert, Ugo | | Mannarino, Adrian | | Monfils, Gael | | Pouille, Lucas | | Rinderknech, Arthur | | Simon, Gilles | | Tsonga, Jo-Wilfried |
|
| Germania (2) |
|---|
| Altmaier, Daniel | | Otte, Oscar |
| | Giappone (1) |
|---|
| Watanuki, Yosuke |
| | Russia (2) |
|---|
| Karatsev, Aslan | | Khachanov, Karen |
| | Slovacchia (1) |
|---|
| Molcan, Alex |
|
| Slovenia (1) |
|---|
| Bedene, Aljaz |
| | Corea del Sud (1) |
|---|
| Kwon, Soonwoo |
| | Spagna (2) |
|---|
| Carreno Busta, Pablo | | Martinez, Pedro |
| | Regno Unito (1) |
|---|
| Norrie, Cameron |
|
| Stati Uniti (1) |
|---|
| Mmoh, Michael |
|