| U18 Premier League 2023 East - Appearances as Referee |  |
 |
 |
||||
| 22/10/2023 | Kashiwa Reysol | - | Ryutsu Keizai University | 4:0 | 1 | - | - |
| U18 Premier League 2023 East - Appearances as Referee | |
|
|
||||
| 22/10/2023 | Kashiwa Reysol | - | Ryutsu Keizai University | 4:0 | 1 | - | - |
| Complete name: | Ryuhei Yamaguchi |
| Born: | |
| Place of birth: |
Japan |
| Nationality: |
Japan |