| | Top level | Event type
Singles, Men – Match #1
| Date | 29 July 2021 | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Damien Dumusois |  FRA |
| Seed | Competitor | NOC | Sets Won | Set 1 | Set 2 | |
|---|---|---|---|---|---|---|
| – | Novak Đoković |  SRB | 2 | 6 | 6 | |
| – | Kei Nishikori |  JPN | 0 | 2 | 0 |
| Novak Đoković | Kei Nishikori | |
|---|---|---|
| Sets Won | 2 | 0 |
| Set 1 | 6 | 2 |
| Set 2 | 6 | 0 |