| League Cup 2020 - Appearances as Assistant | ||||
| 02/09/2020 | FC Tokyo | - | Nagoya Grampus | 3:0 |
| 07/10/2020 | Kawasaki Frontale | - | FC Tokyo | 0:2 |
| League Cup 2020 - Appearances as Assistant | ||||
| 02/09/2020 | FC Tokyo | - | Nagoya Grampus | 3:0 |
| 07/10/2020 | Kawasaki Frontale | - | FC Tokyo | 0:2 |
| Complete name: | Kogo Kumagai |
| Born: | |
| Place of birth: |
Japan |
| Nationality: |
Japan |