| Youth Bundesliga Süd/Südwest 2019/2020 - Appearances as Referee |  |
 |
 |
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| 17/08/2019 | 1899 Hoffenheim | - | 1. FC Heidenheim 1846 | 2:1 | 5 | - | - |
| 02/02/2020 | SSV Ulm 1846 | - | 1. FSV Mainz 05 | 0:4 | 4 | - | 1 |
| Youth Bundesliga Süd/Südwest 2019/2020 - Appearances as Referee | |
|
|
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| 17/08/2019 | 1899 Hoffenheim | - | 1. FC Heidenheim 1846 | 2:1 | 5 | - | - |
| 02/02/2020 | SSV Ulm 1846 | - | 1. FSV Mainz 05 | 0:4 | 4 | - | 1 |
| Complete name: | Johannes Hamper |
| Born: | 12/09/1994 |
| Place of birth: |
Germany |
| Residence: | Kulmbach |
| Nationality: |
Germany |
| Club: | VfR Katschenreuth |