| Oberliga Westfalen 2022/2023 - Appearances as Assistant | ||||
| 18/09/2022 | Westfalia Rhynern | - | SpVgg Vreden | 0:0 |
| 25/09/2022 | TuS Erndtebrück | - | Sportfreunde Lotte | 3:2 |
| 23/04/2023 | Sportfreunde Siegen | - | TSG Sprockhövel | 1:2 |
| Oberliga Westfalen 2022/2023 - Appearances as Assistant | ||||
| 18/09/2022 | Westfalia Rhynern | - | SpVgg Vreden | 0:0 |
| 25/09/2022 | TuS Erndtebrück | - | Sportfreunde Lotte | 3:2 |
| 23/04/2023 | Sportfreunde Siegen | - | TSG Sprockhövel | 1:2 |
| Complete name: | Martin Pier |
| Born: | 10/11/1974 |
| Place of birth: |
Ruda, 
Poland |
| Nationality: |
Germany |
| Height: | 177 cm |
| Weight: | 77 kg |