| Copa América 1999 Paraguay - Appearances as Referee |  |
 |
 |
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| 03/07/1999 | Argentina | - | Colombia | 0:3 | 4 | - | 1 |
| 12/07/1999 | Uruguay | - | Chile | 5:3 pso | 7 | - | - |
| Copa América 1999 Paraguay - Appearances as Referee | |
|
|
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| 03/07/1999 | Argentina | - | Colombia | 0:3 | 4 | - | 1 |
| 12/07/1999 | Uruguay | - | Chile | 5:3 pso | 7 | - | - |
| Complete name: | Ubaldo Aquino Valenzano |
| Born: | 02/05/1958 |
| Place of birth: |
Paraguay |
| Nationality: |
Paraguay |
| Height: | 179 cm |
| Weight: | 77 kg |