| Friendlies 1988 - Appearances as Referee |  |
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| 23/05/1988 | England | - | Colombia | 1:1 | - | - | - |
| Friendlies 1988 - Appearances as Referee | |
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| 23/05/1988 | England | - | Colombia | 1:1 | - | - | - |
| Complete name: | Karl-Josef Assenmacher |
| Born: | 30/05/1947 |
| Place of birth: |
Germany |
| Residence: | Fischenich |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 153 |