| Australië (4) |
|---|
| Bolt, Alex | | De Minaur, Alex | | Kyrgios, Nick | | Millman, John |
| | Bosnië-Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Bulgarije (1) |
|---|
| Dimitrov, Grigor |
| | Canada (1) |
|---|
| Auger-Aliassime, Felix |
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| Frankrijk (2) |
|---|
| Humbert, Ugo | | Mannarino, Adrian |
| | Duitsland (2) |
|---|
| Zverev, Alexander | | Zverev, Mischa |
| | | Mexico (1) |
|---|
| Lopez Villasenor, Gerardo |
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| | Servië (2) |
|---|
| Kecmanovic, Miomir | | Lajovic, Dusan |
| | Zuid-Korea (1) |
|---|
| Kwon, Soonwoo |
| | Spanje (4) |
|---|
| Andujar, Pablo | | Lopez, Feliciano | | Martinez, Pedro | | Nadal, Rafael |
|
| Zwitserland (1) |
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| Wawrinka, Stan |
| | | Verenigd Koninkrijk (2) |
|---|
| Edmund, Kyle | | Norrie, Cameron |
| | Verenigde Staten (8) |
|---|
| Fritz, Taylor | | Giron, Marcos | | Isner, John | | Johnson, Steve | | McDonald, Mackenzie | | Opelka, Reilly | | Paul, Tommy | | Tiafoe, Frances |
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