| KNVB beker 1981/1982 - Appearances as Referee |  |
 |
 |
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| 04/09/1981 | Telstar | - | RKC Waalwijk | 6:2 | - | - | - |
| 30/10/1981 | PSV Eindhoven | - | Telstar | 6:0 | - | - | - |
| 15/01/1982 | FC Den Bosch '67 | - | SC Heracles '74 | 3:4 aet | 1 | - | - |
| KNVB beker 1981/1982 - Appearances as Referee | |
|
|
||||
| 04/09/1981 | Telstar | - | RKC Waalwijk | 6:2 | - | - | - |
| 30/10/1981 | PSV Eindhoven | - | Telstar | 6:0 | - | - | - |
| 15/01/1982 | FC Den Bosch '67 | - | SC Heracles '74 | 3:4 aet | 1 | - | - |
| Complete name: | John Blankenstein |
| Born: | 12/02/1949 † 25/08/2006 |
| Place of birth: |
Den Haag, 
Netherlands |
| Nationality: |
Netherlands |