| KNVB beker 1970/1971 - Appearances as Referee |  |
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| 16/08/1970 | Racing Club Heemstede | - | Blauw Wit | 5:4 pso | - | - | - |
| 08/11/1970 | AZ '67 Alkmaar | - | SVV Schiedam | 3:5 pso | 2 | - | - |
| KNVB beker 1970/1971 - Appearances as Referee | |
|
|
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| 16/08/1970 | Racing Club Heemstede | - | Blauw Wit | 5:4 pso | - | - | - |
| 08/11/1970 | AZ '67 Alkmaar | - | SVV Schiedam | 3:5 pso | 2 | - | - |
| Complete name: | Joop Bentvelzen |
| Born: | 06/12/1930 † 18/07/2006 |
| Place of birth: |
Stompwijk, 
Netherlands |
| Residence: | Leidschendam |
| Nationality: |
Netherlands |