| U20 World Cup 1981 in Australien - Appearances as Assistant | ||||
| 03/10/1981 | Romania | - | Brazil | 1:1 |
| 08/10/1981 | Italy | - | Romania | 0:1 |
| 11/10/1981 | Brazil | - | Qatar | 2:3 |
| U20 World Cup 1981 in Australien - Appearances as Assistant | ||||
| 03/10/1981 | Romania | - | Brazil | 1:1 |
| 08/10/1981 | Italy | - | Romania | 0:1 |
| 11/10/1981 | Brazil | - | Qatar | 2:3 |
| Complete name: | Jan Redelfs |
| Born: | 20/08/1935 † 10/11/1995 |
| Place of birth: |
Hannover, 
Germany |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 151 |