| Argentína (3) |
|---|
| Baez, Sebastian | | Coria, Federico | | Schwartzman, Diego |
| | Austrália (1) |
|---|
| Thompson, Jordan |
| | Rakúsko (1) |
|---|
| Thiem, Dominic |
| |
| Kanada (1) |
|---|
| Auger-Aliassime, Felix |
| | Chorvátsko (1) |
|---|
| Cilic, Marin |
| | Česká republika (1) |
|---|
| Vesely, Jiri |
| | Francúzsko (4) |
|---|
| Bonzi, Benjamin | | Gasquet, Richard | | Herbert, Pierre-Hugues | | Paire, Benoit |
|
| Portugalsko (2) |
|---|
| Borges, Nuno | | Sousa, Joao |
| | | Juhoafrická republika (1) |
|---|
| Harris, Lloyd |
| | Južná Kórea (1) |
|---|
| Kwon, Soonwoo |
|
| Španielsko (7) |
|---|
| Andujar, Pablo | | Carballes Baena, Roberto | | Davidovich Fokina, Alejandro | | Ramos-Vinolas, Albert | | Taberner, Carlos | | Verdasco, Fernando | | Zapata Miralles, Bernabe |
| | USA (3) |
|---|
| Korda, Sebastian | | Paul, Tommy | | Tiafoe, Frances |
| |