| U19 Friendlies 2023 - Appearances as Referee |  |
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| 14/06/2023 | Finland | - | Estonia | 2:1 | 3 | - | - |
| 18/06/2023 | Lithuania | - | Estonia | 2:1 | 7 | - | 1 |
| U19 Friendlies 2023 - Appearances as Referee | |
|
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| 14/06/2023 | Finland | - | Estonia | 2:1 | 3 | - | - |
| 18/06/2023 | Lithuania | - | Estonia | 2:1 | 7 | - | 1 |
| Complete name: | Pietu Niinimäki |
| Born: | |
| Place of birth: |
Finland |
| Nationality: |
Finland |