| Date | — | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Marijana Veljović |  SRB |
| Seed | Competitor | NOC | Sets Won | Sets Won | Set 1 | Set 2 | |
|---|---|---|---|---|---|---|---|
| – | Kei Nishikori |  JPN | 2 | 2 | 6 | 6 | |
| – | Andrey Rublyov |  ROC | 0 | 0 | 3 | 4 |
| Kei Nishikori | Andrey Rublyov | |
|---|---|---|
| Sets Won | 2 | 0 |
| Set 1 | 6 | 3 |
| Set 2 | 6 | 4 |
