| Cup Winners Cup 1977/1978 - Appearances as Referee |  |
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| 14/09/1977 | Dundalk FC | - | Hajduk Split | 1:0 | - | - | - |
| Cup Winners Cup 1977/1978 - Appearances as Referee | |
|
|
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| 14/09/1977 | Dundalk FC | - | Hajduk Split | 1:0 | - | - | - |
| Complete name: | Johannes Nicolaus Ignacius Keizer |
| Born: | 06/10/1940 |
| Place of birth: |
Volendam, 
Netherlands |
| Nationality: |
Netherlands |