| U20 World Cup 1979 in Japan - Appearances as Assistant | ||||
| 26/08/1979 | Uruguay | - | Guinea | 5:0 |
| 30/08/1979 | Yugoslavia | - | Indonesia | 5:0 |
| 02/09/1979 | Spain | - | Poland | 3:4 pso |
| U20 World Cup 1979 in Japan - Appearances as Assistant | ||||
| 26/08/1979 | Uruguay | - | Guinea | 5:0 |
| 30/08/1979 | Yugoslavia | - | Indonesia | 5:0 |
| 02/09/1979 | Spain | - | Poland | 3:4 pso |
| Complete name: | Kazuo Yasudo |
| Born: | |
| Place of birth: |
Tokyo, 
Japan |
| Nationality: |
Japan |