| Emperor's Cup 2021 - Matches comme assistant | ||||
| 16.06.2021 | Kashima Antlers | - | Yokohama S&CC | 8:1 |
| 07.07.2021 | Sagan Tosu | - | Avispa Fukuoka | 1:0 |
| 22.09.2021 | Gamba Osaka | - | Shonan Bellmare | 4:1 |
| Emperor's Cup 2021 - Matches comme assistant | ||||
| 16.06.2021 | Kashima Antlers | - | Yokohama S&CC | 8:1 |
| 07.07.2021 | Sagan Tosu | - | Avispa Fukuoka | 1:0 |
| 22.09.2021 | Gamba Osaka | - | Shonan Bellmare | 4:1 |
| Nom complet: | Kogo Kumagai |
| Né le: | |
| Né à: |
Japon |
| Nationalité: |
Japon |