| Challenge League 2019/2020 - Appearances as Referee |  |
 |
 |
||||
| 20/07/2019 | FC Winterthur | - | FC Aarau | 1:1 | 5 | - | - |
| 31/08/2019 | FC Aarau | - | FC Wil 1900 | 1:0 | 4 | - | - |
| Challenge League 2019/2020 - Appearances as Referee | |
|
|
||||
| 20/07/2019 | FC Winterthur | - | FC Aarau | 1:1 | 5 | - | - |
| 31/08/2019 | FC Aarau | - | FC Wil 1900 | 1:0 | 4 | - | - |
| Complete name: | Stephan Klossner |
| Born: | 30/05/1981 |
| Place of birth: |
Switzerland |
| Nationality: |
Switzerland |