| J1 League 2004 - Appearances as Assistant | ||||
| 14/04/2004 | FC Tokyo | - | Cerezo Osaka | 1:1 |
| 02/05/2004 | Albirex Niigata | - | Tokyo Verdy | 0:1 |
| 22/05/2004 | Kashima Antlers | - | FC Tokyo | 0:0 |
| 29/08/2004 | Kashima Antlers | - | JEF United Ichihara | 0:1 |
| J1 League 2004 - Appearances as Assistant | ||||
| 14/04/2004 | FC Tokyo | - | Cerezo Osaka | 1:1 |
| 02/05/2004 | Albirex Niigata | - | Tokyo Verdy | 0:1 |
| 22/05/2004 | Kashima Antlers | - | FC Tokyo | 0:0 |
| 29/08/2004 | Kashima Antlers | - | JEF United Ichihara | 0:1 |
| Complete name: | Masaki Asano |
| Born: | |
| Place of birth: |
Japan |
| Nationality: |
Japan |