| Argentina (3) |
|---|
| Kicker, Nicolas | | Pella, Guido | | Zeballos, Horacio |
| | Australia (2) |
|---|
| Kyrgios, Nick | | Thompson, Jordan |
| | | Germania (1) |
|---|
| Brown, Dustin |
|
| Giappone (2) |
|---|
| Daniel, Taro | | Nishioka, Yoshihito |
| | Messico (1) |
|---|
| Escobedo, Ernesto |
| | Serbia (1) |
|---|
| Kecmanovic, Miomir |
| |
| Spagna (1) |
|---|
| Verdasco, Fernando |
| | Svizzera (1) |
|---|
| Laaksonen, Henri |
| | Stati Uniti (14) |
|---|
| Fratangelo, Bjorn | | Fritz, Taylor | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Kozlov, Stefan | | Kudla, Denis | | McDonald, Mackenzie | | Querrey, Sam | | Sandgren, Tennys | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
|