| Youth B Bundesliga West 2017/2018 - Appearances as Referee |  |
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 |
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| 28/04/2018 | 1. FC Köln | - | Borussia Dortmund | 2:1 | 5 | - | - |
| Youth B Bundesliga West 2017/2018 - Appearances as Referee | |
|
|
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| 28/04/2018 | 1. FC Köln | - | Borussia Dortmund | 2:1 | 5 | - | - |
| Complete name: | Dominic Mainzer |
| Born: | 27/11/1992 |
| Place of birth: |
Germany |
| Nationality: |
Germany |
| Club: | SV Konz |