| Date | 7 October 2018 |
|---|---|
| Location | Buenos Aires Lawn Tennis Club, Green Park, Palermo, Buenos Aires (Court 2) |
| Competitor | NOC | Sets Won | Set #1 | Set #2 | Set #3 | |
|---|---|---|---|---|---|---|
| Gilbert Klier Junior |  BRA | 2 | 6 | 4 | 6 | |
| Marko Miladinović |  SRB | 1 | 4 | 6 | 2 |
| Gilbert Klier Junior | Marko Miladinović | |
|---|---|---|
| Sets Won | 2 | 1 |
| Set #1 | 6 | 4 |
| Set #2 | 4 | 6 |
| Set #3 | 6 | 2 |
