| Argentina (2) |
|---|
| Del Potro, Juan Martin | | Pella, Guido |
| | Brasilien (1) |
|---|
| Dutra Silva, Rogerio |
| | Canada (1) |
|---|
| Shapovalov, Denis |
| |
| | Tyskland (1) |
|---|
| Gojowczyk, Peter |
| | Grækenland (1) |
|---|
| Tsitsipas, Stefano |
| |
| Japan (2) |
|---|
| Daniel, Taro | | Sugita, Yuichi |
| | | | New Zealand (1) |
|---|
| Venus, Michael |
|
| | | Rusland (2) |
|---|
| Khachanov, Karen | | Rublev, Andrey |
| | Slovakiet (1) |
|---|
| Lacko, Lukas |
|
| | Spanien (2) |
|---|
| Bautista Agut, Roberto | | Ferrer, David |
| | Storbritannien (1) |
|---|
| Edmund, Kyle |
| | USA (8) |
|---|
| Harrison, Ryan | | Isner, John | | Johnson, Steve | | Querrey, Sam | | Sandgren, Tennys | | Smyczek, Tim | | Sock, Jack | | Young, Donald |
|
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