| Oberliga Westfalen 2020/2021 - Appearances as Referee |  |
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| 20/09/2020 | TSG Sprockhövel | - | Hammer SpVg | 3:2 | 5 | - | - |
| 25/10/2020 | TuS Haltern | - | FC Gütersloh | 0:1 | - | - | - |
| Oberliga Westfalen 2020/2021 - Appearances as Referee | |
|
|
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| 20/09/2020 | TSG Sprockhövel | - | Hammer SpVg | 3:2 | 5 | - | - |
| 25/10/2020 | TuS Haltern | - | FC Gütersloh | 0:1 | - | - | - |
| Complete name: | Sina Diekmann |
| Born: | 05/06/1989 |
| Place of birth: |
Germany |
| Residence: | Göttingen |
| Nationality: |
Germany |
| Profession: | Studentin |
| Club: | TSV Arholzen |
| Height: | 173 cm |