| Argentina (5) |
|---|
| Cachin, Pedro | | Cerundolo, Francisco | | Etcheverry, Tomas Martin | | Schwartzman, Diego | | Trungelliti, Marco |
| | Australia (2) |
|---|
| De Minaur, Alex | | Kubler, Jason |
| | |
| Bulgaria (1) |
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| Dimitrov, Grigor |
| | Canadá (1) |
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| Shapovalov, Denis |
| | |
| | Finlandia (1) |
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| Ruusuvuori, Emil |
| | Grecia (1) |
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| Tsitsipas, Stefanos |
| | Hungría (1) |
|---|
| Balazs, Attila |
|
| Italia (5) |
|---|
| Arnaldi, Matteo | | Giustino, Lorenzo | | Musetti, Lorenzo | | Passaro, Francesco | | Sinner, Jannik |
| | Japón (1) |
|---|
| Nishioka, Yoshihito |
| | Kazajstán (2) |
|---|
| Bublik, Alexander | | Shevchenko, Alexander |
| | Países Bajos (1) |
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| Brouwer, Gijs |
|
| | | Rusia (2) |
|---|
| Khachanov, Karen | | Kotov, Pavel |
| | Eslovaquia (1) |
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| Kovalik, Jozef |
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| España (11) |
|---|
| Alcaraz, Carlos | | Andujar, Pablo | | Bautista Agut, Roberto | | Davidovich Fokina, Alejandro | | Lopez, Feliciano | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Rincon, Daniel | | Verdasco, Fernando | | Zapata Miralles, Bernabe |
| | Ucrania (1) |
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| Krutykh, Oleksii |
| | Reino Unido (2) |
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| Evans, Daniel | | Norrie, Cameron |
| | Estados Unidos (3) |
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| McDonald, Mackenzie | | Shelton, Ben | | Tiafoe, Frances |
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