| Australia (3) |
|---|
| De Minaur, Alex | | Kyrgios, Nick | | Millman, John |
| | Bosnia-Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Chiny (3) |
|---|
| Wu, Di | | Zhang, Ze | | Zhang, Zhizhen |
| | Chorwacja (1) |
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| Coric, Borna |
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| Francja (3) |
|---|
| Mannarino, Adrian | | Monfils, Gael | | Pouille, Lucas |
| | Niemcy (2) |
|---|
| Gojowczyk, Peter | | Koepfer, Dominik |
| | Grecja (1) |
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| Tsitsipas, Stefano |
| | Włochy (2) |
|---|
| Cecchinato, Marco | | Seppi, Andreas |
|
| Japonia (2) |
|---|
| Ito, Tatsuma | | Nishioka, Yoshihito |
| | | Serbia (1) |
|---|
| Kecmanovic, Miomir |
| | Korea Południowa (1) |
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| Kwon, Soonwoo |
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| Hiszpania (3) |
|---|
| Andujar, Pablo | | Bautista Agut, Roberto | | Ramos-Vinolas, Albert |
| | Zjednoczone Królestwo (2) |
|---|
| Murray, Andy | | Norrie, Cameron |
| | Stany Zjednoczone (2) |
|---|
| Johnson, Steve | | Sandgren, Tennys |
|