| Premiership 2015 Championship - Appearances as Referee |  |
 |
 |
||||
| 26/04/2015 | Dundee United | - | Celtic FC | 0:3 | 2 | - | - |
| 24/05/2015 | Aberdeen FC | - | St. Johnstone FC | 0:1 | 3 | - | - |
| Premiership 2015 Championship - Appearances as Referee | |
|
|
||||
| 26/04/2015 | Dundee United | - | Celtic FC | 0:3 | 2 | - | - |
| 24/05/2015 | Aberdeen FC | - | St. Johnstone FC | 0:1 | 3 | - | - |
| Complete name: | William Collum |
| Born: | 18/01/1979 |
| Place of birth: |
Glasgow, 
Scotland |
| Residence: | Motherwell |
| Nationality: |
Scotland |
| Profession: | Lehrer |
| Height: | 174 cm |
| Weight: | 69 kg |