| Veikkausliiga 2019 Playoff EL - Appearances as Referee |  |
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 |
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| 03/11/2019 | FC Honka | - | IFK Mariehamn | 1:0 | 1 | - | - |
| Veikkausliiga 2019 Playoff EL - Appearances as Referee | |
|
|
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| 03/11/2019 | FC Honka | - | IFK Mariehamn | 1:0 | 1 | - | - |
| Complete name: | Petri Juhani Viljanen |
| Born: | 00/00/1987 |
| Place of birth: |
Finland |
| Nationality: |
Finland |