| Oberliga Niederrhein 2022/2023 - Appearances as Assistant | ||||
| 05/08/2022 | SSVg Velbert | - | MSV Düsseldorf | 1:1 |
| 03/12/2022 | KFC Uerdingen 05 | - | Germania Ratingen 04/19 | 1:0 |
| 29/05/2023 | 1. FC Kleve | - | Schwarz-Weiß Essen | 1:1 |
| Oberliga Niederrhein 2022/2023 - Appearances as Assistant | ||||
| 05/08/2022 | SSVg Velbert | - | MSV Düsseldorf | 1:1 |
| 03/12/2022 | KFC Uerdingen 05 | - | Germania Ratingen 04/19 | 1:0 |
| 29/05/2023 | 1. FC Kleve | - | Schwarz-Weiß Essen | 1:1 |
| Complete name: | Leon Tiemer |
| Born: | |
| Place of birth: |
Germany |
| Nationality: |
Germany |
| Club: | Eintracht Emmerich 09/20 |