| J1 League 1999 2nd stage - Matches comme assistant | ||||
| 18.08.1999 | Shimizu S-Pulse | - | Kashima Antlers | 2:0 |
| 28.08.1999 | Yokohama F. Marinos | - | Gamba Osaka | 3:0 |
| 15.09.1999 | Verdy Kawasaki | - | Kashiwa Reysol | 1:3 |
| 20.11.1999 | JEF United Ichihara | - | Vissel Kobe | 0:1 |
| J1 League 1999 2nd stage - Matches comme assistant | ||||
| 18.08.1999 | Shimizu S-Pulse | - | Kashima Antlers | 2:0 |
| 28.08.1999 | Yokohama F. Marinos | - | Gamba Osaka | 3:0 |
| 15.09.1999 | Verdy Kawasaki | - | Kashiwa Reysol | 1:3 |
| 20.11.1999 | JEF United Ichihara | - | Vissel Kobe | 0:1 |
| Nom complet: | Hiroshi Yamaguchi |
| Né le: | |
| Né à: |
Japon |
| Nationalité: |
Japon |