| Youth B Bundesliga Nord/Nordost 2008/2009 - Appearances as Assistant | ||||
| 30/08/2008 | Hertha BSC | - | FC St. Pauli | 6:2 |
| 28/03/2009 | Rot-Weiß Erfurt | - | TeBe Berlin | 3:3 |
| 04/04/2009 | Hansa Rostock | - | Hamburger SV | 2:3 |
| Youth B Bundesliga Nord/Nordost 2008/2009 - Appearances as Assistant | ||||
| 30/08/2008 | Hertha BSC | - | FC St. Pauli | 6:2 |
| 28/03/2009 | Rot-Weiß Erfurt | - | TeBe Berlin | 3:3 |
| 04/04/2009 | Hansa Rostock | - | Hamburger SV | 2:3 |
| Complete name: | Mario Birnstiel |
| Born: | 13/01/1986 |
| Place of birth: |
Germany |
| Residence: | Hannover |
| Nationality: |
Germany |
| Profession: | Polizist |
| Club: | TuSpo Petershütte |
| Height: | 186 cm |