| Cup Winners Cup 1963/1964 - Appearances as Referee |  |
 |
 |
||||
| 02/10/1963 | Union Luxembourg | - | Hamburger SV | 2:3 | - | - | - |
| 04/12/1963 | Celtic FC | - | Dinamo Zagreb | 3:0 | - | - | - |
| 08/04/1964 | Olympique Lyon | - | Sporting CP | 0:0 | - | - | - |
| Cup Winners Cup 1963/1964 - Appearances as Referee | |
|
|
||||
| 02/10/1963 | Union Luxembourg | - | Hamburger SV | 2:3 | - | - | - |
| 04/12/1963 | Celtic FC | - | Dinamo Zagreb | 3:0 | - | - | - |
| 08/04/1964 | Olympique Lyon | - | Sporting CP | 0:0 | - | - | - |
| Complete name: | Pieter Paulus Roomer |
| Born: | 04/06/1920 |
| Place of birth: |
Netherlands |
| Residence: | Rotterdam |
| Nationality: |
Netherlands |