| Argentina (4) |
|---|
| Berlocq, Carlos | | Del Potro, Juan Martin | | Kicker, Nicolas | | Olivo, Renzo |
| | Australia (3) |
|---|
| Kokkinakis, Thanasi | | Kyrgios, Nick | | Thompson, Jordan |
| | | Bosnia og Herzegovina (1) |
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| Dzumhur, Damir |
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| Brasil (1) |
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| Monteiro, Thiago |
| | | | Tsjekkisk Republikk (1) |
|---|
| Berdych, Tomas |
|
| Frankrike (5) |
|---|
| Halys, Quentin | | Mahut, Nicolas | | Paire, Benoit | | Simon, Gilles | | Tsonga, Jo-Wilfried |
| | Georgia (1) |
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| Basilashvili, Nikoloz |
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|---|
| Brown, Dustin |
| |
| | Portugal (1) |
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| Elias, Gastao |
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| Khachanov, Karen | | Medvedev, Daniil |
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| Chung, Hyeon |
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| Granollers, Marcel |
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| Sandgren, Tennys | | Young, Donald |
| | Uzbekistan (1) |
|---|
| Istomin, Denis |
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