| KNVB beker 1983/1984 - Appearances as Referee |  |
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| 09/10/1983 | VV Breskens | - | DWS Amsterdam | 2:0 | - | - | - |
| KNVB beker 1983/1984 - Appearances as Referee | |
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| 09/10/1983 | VV Breskens | - | DWS Amsterdam | 2:0 | - | - | - |
| Complete name: | Koos van der Leek |
| Born: | |
| Place of birth: |
Netherlands |
| Nationality: |
Netherlands |