| Date | 11 August 2016 — 11:05 | |
|---|---|---|
| Location | Centro Olímpico de Tênis, Parque Olímpico da Barra, Barra da Tijuca, Rio de Janeiro (Court 2) | |
| Chair Umpire | Carlos Ramos |  POR |
| Seed | Competitor | NOC | Sets Won | Sets Won | Set 1 | Set 2 | Set 3 | |
|---|---|---|---|---|---|---|---|---|
| – | Juan Martín del Potro |  ARG | 2 | 2 | 6 | 6 | 6 | |
| – | Taro Daniel |  JPN | 1 | 1 | 7 | 1 | 2 |
| Juan Martín del Potro | Taro Daniel | |
|---|---|---|
| Sets Won | 2 | 1 |
| Set 1 | 6 | 7 |
| Set 2 | 6 | 1 |
| Set 3 | 6 | 2 |
| Tie-break 1 | 4 | 7 |
