| Europa League 1980/1981 - Appearances as Referee |  |
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| 01/10/1980 | Dinamo Moskva | - | Sporting Lokeren | 0:1 | - | - | - |
| 09/12/1980 | Widzew Łódź | - | Ipswich Town | 1:0 | - | - | - |
| 17/03/1981 | FC Sochaux | - | Grasshopper Club Zürich | 2:1 | - | - | - |
| Europa League 1980/1981 - Appearances as Referee | |
|
|
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| 01/10/1980 | Dinamo Moskva | - | Sporting Lokeren | 0:1 | - | - | - |
| 09/12/1980 | Widzew Łódź | - | Ipswich Town | 1:0 | - | - | - |
| 17/03/1981 | FC Sochaux | - | Grasshopper Club Zürich | 2:1 | - | - | - |
| Complete name: | Jan Redelfs |
| Born: | 20/08/1935 † 10/11/1995 |
| Place of birth: |
Hannover, 
Germany |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 151 |