| Veikkausliiga 2023 ECL Playoff - Appearances as Referee |  |
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 |
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| 25/10/2023 | SJK Seinäjoki | - | AC Oulu | 4:5 pso | 3 | - | - |
| Veikkausliiga 2023 ECL Playoff - Appearances as Referee | |
|
|
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| 25/10/2023 | SJK Seinäjoki | - | AC Oulu | 4:5 pso | 3 | - | - |
| Complete name: | Kaarlo Oskari Hämäläinen |
| Born: | 02/04/1993 |
| Place of birth: |
Finland |
| Nationality: |
Finland |