| Conference League Qual. 2021/2022 - Appearances as Referee |  |
 |
 |
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| 29/07/2021 | Connah's Quay Nomads | - | KF Prishtina | 4:2 | 6 | - | - |
| 12/08/2021 | KF Teuta Durrës | - | Shamrock Rovers | 0:2 | 5 | - | - |
| Conference League Qual. 2021/2022 - Appearances as Referee | |
|
|
||||
| 29/07/2021 | Connah's Quay Nomads | - | KF Prishtina | 4:2 | 6 | - | - |
| 12/08/2021 | KF Teuta Durrës | - | Shamrock Rovers | 0:2 | 5 | - | - |
| Complete name: | Petri Juhani Viljanen |
| Born: | 00/00/1987 |
| Place of birth: |
Finland |
| Nationality: |
Finland |