| | Top level | Event type
Singles, Men – Match #23
| Date | — | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Damien Dumusois |  FRA |
| Seed | Competitor | NOC | Sets Won | Set 1 | Set 2 | |
|---|---|---|---|---|---|---|
| – | Frances Tiafoe |  USA | 2 | 6 | 6 | |
| – | Gwon Sun-U |  KOR | 0 | 3 | 2 |
| Frances Tiafoe | Gwon Sun-U | |
|---|---|---|
| Sets Won | 2 | 0 |
| Set 1 | 6 | 3 |
| Set 2 | 6 | 2 |