| Youth B Bundesliga West 2014/2015 - Appearances as Referee |  |
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 |
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| 30/11/2014 | Borussia Dortmund | - | Arminia Bielefeld | 5:0 | - | - | - |
| Youth B Bundesliga West 2014/2015 - Appearances as Referee | |
|
|
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| 30/11/2014 | Borussia Dortmund | - | Arminia Bielefeld | 5:0 | - | - | - |
| Complete name: | Mario Heller |
| Born: | 24/03/1989 |
| Place of birth: |
Germany |
| Residence: | Köln |
| Nationality: |
Germany |
| Club: | SV Westhoven-Ensen 1931 |