| | Top level | Event type
Singles, Men – Match #20
| Date | — | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Zhang Juan |  CHN |
| Seed | Competitor | NOC | Sets Won | Set 1 | Set 2 | Set 3 | |
|---|---|---|---|---|---|---|---|
| – | Karen Khachanov |  ROC | 2 | 3 | 6 | 6 | |
| – | Yoshihito Nishioka |  JPN | 1 | 6 | 1 | 2 |
| Karen Khachanov | Yoshihito Nishioka | |
|---|---|---|
| Sets Won | 2 | 1 |
| Set 1 | 3 | 6 |
| Set 2 | 6 | 1 |
| Set 3 | 6 | 2 |