| Europa League 1969/1970 - Appearances as Referee |  |
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| 01/10/1969 | B 1913 Odense | - | FC Barcelona | 0:2 | - | - | - |
| 11/11/1969 | RSC Anderlecht | - | Coleraine FC | 6:1 | - | - | - |
| 14/01/1970 | FC Carl Zeiss Jena | - | Újpesti Dózsa SC | 1:0 | - | - | - |
| Europa League 1969/1970 - Appearances as Referee | |
|
|
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| 01/10/1969 | B 1913 Odense | - | FC Barcelona | 0:2 | - | - | - |
| 11/11/1969 | RSC Anderlecht | - | Coleraine FC | 6:1 | - | - | - |
| 14/01/1970 | FC Carl Zeiss Jena | - | Újpesti Dózsa SC | 1:0 | - | - | - |
| Complete name: | Theo Boosten |
| Born: | 21/02/1929 † 14/04/1994 |
| Place of birth: |
Hoensbroek, 
Netherlands |
| Nationality: |
Netherlands |