| Youth Youth League 2022/2023 - Appearances as Referee |  |
 |
 |
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| 05/10/2022 | RB Leipzig | - | Celtic FC | 1:2 | 6 | - | - |
| Youth Youth League 2022/2023 - Appearances as Referee | |
|
|
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| 05/10/2022 | RB Leipzig | - | Celtic FC | 1:2 | 6 | - | - |
| Complete name: | Walter Altmann |
| Born: | 24/12/1984 |
| Place of birth: |
Austria |
| Nationality: |
Austria |