| Promotion League | Matches | W | D | L |  |
 |
 |
| home | - | - | - | - | - | - | - |
| away | 2 | - | 1 | 1 | 5 | - | - |
| overall | 2 | - | 1 | 1 | 5 | - | - |
| Promotion League | Home | - | Guest | |
|
|
Results |
| 09/09/17 | FC Sion II | - | BSC Old Boys | 1 | - | - | 1:1 |
| 28/04/18 | Yverdon Sport FC | - | BSC Old Boys | 4 | - | - | 4:3 |
Switzerland