| U20 Friendlies 2015 - Appearances as Referee |  |
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 |
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| 07/10/2015 | England | - | Netherlands | 3:1 | 1 | - | - |
| U20 Friendlies 2015 - Appearances as Referee | |
|
|
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| 07/10/2015 | England | - | Netherlands | 3:1 | 1 | - | - |
| Complete name: | Steffen Mix |
| Born: | 25/11/1989 † 24/09/2017 |
| Place of birth: |
Germany |
| Residence: | Abtswind |
| Nationality: |
Germany |