| Preolímpico Sudamericano 2020 Colombia - Appearances as Referee |  |
 |
 |
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| 19/01/2020 | Paraguay | - | Uruguay | 0:1 | 4 | - | - |
| 01/02/2020 | Brazil | - | Paraguay | 2:1 | 6 | - | - |
| 07/02/2020 | Colombia | - | Argentina | 1:2 | 5 | - | 1 |
| Preolímpico Sudamericano 2020 Colombia - Appearances as Referee | |
|
|
||||
| 19/01/2020 | Paraguay | - | Uruguay | 0:1 | 4 | - | - |
| 01/02/2020 | Brazil | - | Paraguay | 2:1 | 6 | - | - |
| 07/02/2020 | Colombia | - | Argentina | 1:2 | 5 | - | 1 |
| Complete name: | Piero Maza Gómez |
| Born: | 25/10/1984 |
| Place of birth: |
Chile |
| Nationality: |
Chile |