| Argentina (1) |
|---|
| Pella, Guido |
| | Australia (1) |
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| Thompson, Jordan |
| | Østerrike (1) |
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| Rodionov, Jurij |
| |
| | Canada (2) |
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| Auger-Aliassime, Felix | | Pospisil, Vasek |
| | Frankrike (5) |
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| Humbert, Ugo | | Monfils, Gael | | Moutet, Corentin | | Rinderknech, Arthur | | Simon, Gilles |
| | Georgia (1) |
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| Basilashvili, Nikoloz |
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| Tyskland (6) |
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| Altmaier, Daniel | | Hanfmann, Yannick | | Koepfer, Dominik | | Kohlschreiber, Philipp | | Struff, Jan-Lennard | | Zverev, Alexander |
| | Hellas (1) |
|---|
| Tsitsipas, Stefanos |
| | | Litauen (1) |
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| Berankis, Ricardas |
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| | Russland (3) |
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| Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | | Sør-Afrika (1) |
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| Harris, Lloyd |
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| Spania (1) |
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| Bautista Agut, Roberto |
| | | Amerika (3) |
|---|
| Giron, Marcos | | Korda, Sebastian | | Querrey, Sam |
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