| Regionalliga Nord 2020/2021 Süd - Appearances as Referee |  |
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 |
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| 04/10/2020 | VfV Hildesheim | - | Atlas Delmenhorst | 3:2 | 10 | - | - |
| Regionalliga Nord 2020/2021 Süd - Appearances as Referee | |
|
|
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| 04/10/2020 | VfV Hildesheim | - | Atlas Delmenhorst | 3:2 | 10 | - | - |
| Complete name: | Mario Birnstiel |
| Born: | 13/01/1986 |
| Place of birth: |
Germany |
| Residence: | Hannover |
| Nationality: |
Germany |
| Profession: | Polizist |
| Club: | TuSpo Petershütte |
| Height: | 186 cm |