| Campeonato Catarinense (SC) 2021 Playoffs - Appearances as Referee |  |
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 |
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| 29/04/2021 | Chapecoense | - | Hercílio Luz - SC | -:- | 4 | - | - |
| 19/05/2021 | Chapecoense | - | Marcílio Dias - SC | 1:1 | 5 | - | - |
| Campeonato Catarinense (SC) 2021 Playoffs - Appearances as Referee | |
|
|
||||
| 29/04/2021 | Chapecoense | - | Hercílio Luz - SC | -:- | 4 | - | - |
| 19/05/2021 | Chapecoense | - | Marcílio Dias - SC | 1:1 | 5 | - | - |
| Complete name: | William Machado Steffen |
| Born: | 19/08/1987 |
| Place of birth: |
Brazil |
| Nationality: |
Brazil |