| KNVB beker 1992/1993 - Appearances as Referee |  |
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| 27/10/1992 | SC Cambuur | - | sc Heerenveen | 0:3 | 2 | - | - |
| 16/02/1993 | sc Heerenveen | - | PSV Eindhoven | 2:1 aet | 6 | - | - |
| 30/03/1993 | Feyenoord | - | AFC Ajax | 0:5 | - | - | - |
| KNVB beker 1992/1993 - Appearances as Referee | |
|
|
||||
| 27/10/1992 | SC Cambuur | - | sc Heerenveen | 0:3 | 2 | - | - |
| 16/02/1993 | sc Heerenveen | - | PSV Eindhoven | 2:1 aet | 6 | - | - |
| 30/03/1993 | Feyenoord | - | AFC Ajax | 0:5 | - | - | - |
| Complete name: | John Blankenstein |
| Born: | 12/02/1949 † 25/08/2006 |
| Place of birth: |
Den Haag, 
Netherlands |
| Nationality: |
Netherlands |