| KNVB beker 1972/1973 - Appearances as Referee |  |
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| 09/12/1972 | RKSV Volendam | - | PEC Zwolle | 0:1 | - | - | - |
| KNVB beker 1972/1973 - Appearances as Referee | |
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| 09/12/1972 | RKSV Volendam | - | PEC Zwolle | 0:1 | - | - | - |
| Complete name: | Siem Wellinga |
| Born: | 09/03/1931 |
| Place of birth: |
Netherlands |
| Residence: | Boekelo |
| Nationality: |
Netherlands |