| Youth Bundesliga Nord/Nordost 2012/2013 - Appearances as Referee |  |
 |
 |
||||
| 16/09/2012 | Hannover 96 | - | Rot-Weiß Erfurt | 1:4 | 1 | - | 1 |
| 24/11/2012 | VfL Osnabrück | - | Werder Bremen | 0:3 | 2 | - | - |
| Youth Bundesliga Nord/Nordost 2012/2013 - Appearances as Referee | |
|
|
||||
| 16/09/2012 | Hannover 96 | - | Rot-Weiß Erfurt | 1:4 | 1 | - | 1 |
| 24/11/2012 | VfL Osnabrück | - | Werder Bremen | 0:3 | 2 | - | - |
| Complete name: | Mario Heller |
| Born: | 24/03/1989 |
| Place of birth: |
Germany |
| Residence: | Köln |
| Nationality: |
Germany |
| Club: | SV Westhoven-Ensen 1931 |