| Date | 6 August 2016 — 12:51 | |
|---|---|---|
| Location | Centro Olímpico de Tênis, Parque Olímpico da Barra, Barra da Tijuca, Rio de Janeiro (Court 1) | |
| Chair Umpire | Jake Garner |  USA |
| Seed | Competitor | NOC | Sets Won | Set #1 | Set #2 | |
|---|---|---|---|---|---|---|
| 9 | Marin Čilić |  CRO | 2 | 6 | 6 | |
| – | Grigor Dimitrov |  BUL | 0 | 1 | 4 |
| Marin Čilić | Grigor Dimitrov | |
|---|---|---|
| Sets Won | 2 | 0 |
| Set #1 | 6 | 1 |
| Set #2 | 6 | 4 |
