| Europa League 1980/1981 - Appearances as Referee |  |
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| 16/09/1980 | Hamburger SV | - | FK Sarajevo | 4:2 | - | - | - |
| 09/12/1980 | Real Sociedad | - | Sporting Lokeren | 2:2 | - | - | - |
| Europa League 1980/1981 - Appearances as Referee | |
|
|
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| 16/09/1980 | Hamburger SV | - | FK Sarajevo | 4:2 | - | - | - |
| 09/12/1980 | Real Sociedad | - | Sporting Lokeren | 2:2 | - | - | - |
| Complete name: | John Clive Thomas |
| Born: | 22/06/1936 |
| Place of birth: |
Wales |
| Residence: | Treorchy |
| Nationality: |
Wales |