| Argentina (9) |
|---|
| Baez, Sebastian | | Cerundolo, Francisco | | Cerundolo, Juan Manuel | | Comesana, Francisco | | Etcheverry, Tomas Martin | | Navone, Mariano | | Tirante, Thiago Agustin | | Trungelliti, Marco | | Ugo Carabelli, Camilo |
| | Australia (3) |
|---|
| De Minaur, Alex | | Popyrin, Alexei | | Walton, Adam |
| | Austria (1) |
|---|
| Ofner, Sebastian |
| | Bélgica (2) |
|---|
| Bergs, Zizou | | Blockx, Alexander |
|
| Bosnia y Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Canadá (3) |
|---|
| Auger-Aliassime, Felix | | Diallo, Gabriel | | Shapovalov, Denis |
|
| Chile (2) |
|---|
| Garin, Christian | | Tabilo, Alejandro |
| | | Croacia (2) |
|---|
| Cilic, Marin | | Prizmic, Dino |
| | República Checa (4) |
|---|
| Kopriva, Vit | | Lehecka, Jiri | | Machac, Tomas | | Mensik, Jakub |
|
| Dinamarca (1) |
|---|
| Moller, Elmer |
| | Francia (11) |
|---|
| Atmane, Terence | | Bonzi, Benjamin | | Droguet, Titouan | | Fils, Arthur | | Humbert, Ugo | | Mannarino, Adrian | | Monfils, Gael | | Moutet, Corentin | | Muller, Alexandre | | Rinderknech, Arthur | | Royer, Valentin |
| | Georgia (1) |
|---|
| Basilashvili, Nikoloz |
| | Alemania (4) |
|---|
| Altmaier, Daniel | | Hanfmann, Yannick | | Struff, Jan-Lennard | | Zverev, Alexander |
|
| Grecia (1) |
|---|
| Tsitsipas, Stefanos |
| | Hungría (2) |
|---|
| Fucsovics, Marton | | Marozsan, Fabian |
| | Italia (8) |
|---|
| Bellucci, Mattia | | Berrettini, Matteo | | Cina, Federico | | Cobolli, Flavio | | Darderi, Luciano | | Musetti, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo |
| | Kazajstán (2) |
|---|
| Bublik, Alexander | | Shevchenko, Alexander |
|
| Lituania (1) |
|---|
| Gaubas, Vilius |
| | Mónaco (1) |
|---|
| Vacherot, Valentin |
| | Países Bajos (3) |
|---|
| Griekspoor, Tallon | | Jong, Jesper de | | Zandschulp, Botic van de |
| | Noruega (2) |
|---|
| Budkov Kjaer, Nicolai | | Ruud, Casper |
|
| Paraguay (1) |
|---|
| Vallejo, Adolfo Daniel |
| | | Polonia (1) |
|---|
| Hurkacz, Hubert |
| | Portugal (2) |
|---|
| Borges, Nuno | | Faria, Jaime |
|
| Rusia (3) |
|---|
| Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | Serbia (2) |
|---|
| Kecmanovic, Miomir | | Lajovic, Dusan |
| | España (7) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Jodar, Rafael | | Landaluce, Martin | | Merida, Daniel | | Munar, Jaume |
| | Reino Unido (1) |
|---|
| Norrie, Cameron |
|
| Estados Unidos (12) |
|---|
| Brooksby, Jenson | | Damm, Martin | | Giron, Marcos | | Kypson, Patrick | | Michelsen, Alex | | Nakashima, Brandon | | Nava, Emilio | | Opelka, Reilly | | Paul, Tommy | | Quinn, Ethan | | Shelton, Ben | | Tien, Learner |
|