| Date | 31 July 2021 | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Nico Helwerth |  GER |
| Competitor | NOC | Sets Won | Set #1 | Set #2 | Set #3 | |
|---|---|---|---|---|---|---|
| Pablo Carreño Busta |  ESP | 2 | 6 | 6 (6) | 6 | |
| Novak Đoković |  SRB | 1 | 4 | 7 (8) | 3 |
| Pablo Carreño Busta | Novak Đoković | |
|---|---|---|
| Sets Won | 2 | 1 |
| Set #1 | 6 | 4 |
| Set #2 | 6 (6) | 7 (8) |
| Set #3 | 6 | 3 |
