| Championship 2021/2022 - Appearances as Referee |  |
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 |
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| 02/10/2021 | Partick Thistle | - | Ayr United | 4:0 | 4 | - | - |
| Championship 2021/2022 - Appearances as Referee | |
|
|
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| 02/10/2021 | Partick Thistle | - | Ayr United | 4:0 | 4 | - | - |
| Complete name: | Duncan Williams |
| Born: | |
| Place of birth: |
Scotland |
| Nationality: |
Scotland |