| Europa League Qual. 2018/2019 - Appearances as Referee |  |
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 |
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| 02/08/2018 | Lincoln Red Imps | - | The New Saints | 1:1 | 3 | - | - |
| Europa League Qual. 2018/2019 - Appearances as Referee | |
|
|
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| 02/08/2018 | Lincoln Red Imps | - | The New Saints | 1:1 | 3 | - | - |
| Complete name: | Petri Juhani Viljanen |
| Born: | 00/00/1987 |
| Place of birth: |
Finland |
| Nationality: |
Finland |