| Date | 29 July 2021 | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Marijana Veljović |  SRB |
| Competitor | NOC | Sets Won | Set #1 | Set #2 | Set #3 | |
|---|---|---|---|---|---|---|
| Karen Khachanov |  ROC | 2 | 7 (7) | 4 | 6 | |
| Ugo Humbert |  FRA | 1 | 6 (4) | 6 | 3 |
| Karen Khachanov | Ugo Humbert | |
|---|---|---|
| Sets Won | 2 | 1 |
| Set #1 | 7 (7) | 6 (4) |
| Set #2 | 4 | 6 |
| Set #3 | 6 | 3 |
