| Champions League 1984/1985 - Appearances as Referee |  |
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| 07/11/1984 | Austria Wien | - | BFC Dynamo | 2:1 | 2 | - | - |
| 06/03/1985 | Girondins Bordeaux | - | Dnepr Dnepropetrovsk | 1:1 | 1 | - | - |
| 10/04/1985 | Liverpool FC | - | Panathinaikos | 4:0 | 1 | - | - |
| Champions League 1984/1985 - Appearances as Referee | |
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|
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| 07/11/1984 | Austria Wien | - | BFC Dynamo | 2:1 | 2 | - | - |
| 06/03/1985 | Girondins Bordeaux | - | Dnepr Dnepropetrovsk | 1:1 | 1 | - | - |
| 10/04/1985 | Liverpool FC | - | Panathinaikos | 4:0 | 1 | - | - |
| Complete name: | Johannes Nicolaus Ignacius Keizer |
| Born: | 06/10/1940 |
| Place of birth: |
Volendam, 
Netherlands |
| Nationality: |
Netherlands |