| Youth Youth League 2023/2024 - Appearances as Referee |  |
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 |
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| 04/10/2023 | Celtic FC | - | Lazio Roma | 1:1 | 2 | - | - |
| 25/10/2023 | HJK Helsinki | - | Malmö FF | 1:2 | 6 | - | - |
| 29/11/2023 | Arsenal FC | - | RC Lens | 0:2 | 5 | - | - |
| Youth Youth League 2023/2024 - Appearances as Referee | |
|
|
||||
| 04/10/2023 | Celtic FC | - | Lazio Roma | 1:1 | 2 | - | - |
| 25/10/2023 | HJK Helsinki | - | Malmö FF | 1:2 | 6 | - | - |
| 29/11/2023 | Arsenal FC | - | RC Lens | 0:2 | 5 | - | - |
| Complete name: | Helgi Mikael Jónasson |
| Born: | 23/10/1993 |
| Place of birth: |
Iceland |
| Nationality: |
Iceland |