| Youth B Championship 2012/2013 - Appearances as Assistant | ||||
| 05/06/2013 | FC Schalke 04 | - | Hertha BSC | 0:1 |
| Youth B Championship 2012/2013 - Appearances as Assistant | ||||
| 05/06/2013 | FC Schalke 04 | - | Hertha BSC | 0:1 |
| Complete name: | Julius Martenstein |
| Born: | 16/10/1991 |
| Place of birth: |
Germany |
| Residence: | Marburg |
| Nationality: |
Germany |