| Copa Libertadores 2020 - Appearances as Referee |  |
 |
 |
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| 17/09/2020 | Bolívar | - | Palmeiras | 1:2 | 4 | - | - |
| 24/09/2020 | Jorge Wilstermann | - | Peñarol | 3:1 | 4 | - | - |
| Copa Libertadores 2020 - Appearances as Referee | |
|
|
||||
| 17/09/2020 | Bolívar | - | Palmeiras | 1:2 | 4 | - | - |
| 24/09/2020 | Jorge Wilstermann | - | Peñarol | 3:1 | 4 | - | - |
| Complete name: | Piero Maza Gómez |
| Born: | 25/10/1984 |
| Place of birth: |
Chile |
| Nationality: |
Chile |