| EURO Qualifiers 2019/2020 - Appearances as Referee |  |
 |
 |
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| 24/03/2019 | Hungary | - | Croatia | 2:1 | 2 | - | - |
| 10/06/2019 | Spain | - | Sweden | 3:0 | 1 | - | - |
| 10/10/2019 | Austria | - | Israel | 3:1 | 4 | - | - |
| EURO Qualifiers 2019/2020 - Appearances as Referee | |
|
|
||||
| 24/03/2019 | Hungary | - | Croatia | 2:1 | 2 | - | - |
| 10/06/2019 | Spain | - | Sweden | 3:0 | 1 | - | - |
| 10/10/2019 | Austria | - | Israel | 3:1 | 4 | - | - |
| 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 |