| KNVB beker 1977/1978 - Appearances as Referee |  |
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| 09/10/1977 | FC Groningen | - | EDO Haarlem | 2:0 | - | - | - |
| 19/11/1977 | DWV Amsterdam | - | Roda JC Kerkrade | 0:1 aet | 1 | - | - |
| KNVB beker 1977/1978 - Appearances as Referee | |
|
|
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| 09/10/1977 | FC Groningen | - | EDO Haarlem | 2:0 | - | - | - |
| 19/11/1977 | DWV Amsterdam | - | Roda JC Kerkrade | 0:1 aet | 1 | - | - |
| Complete name: | Piet Bosman |
| Born: | 03/11/1936 † 15/11/2014 |
| Place of birth: |
Rotterdam, 
Netherlands |
| Nationality: |
Netherlands |