| U20 World Cup 2007 Canada - Appearances as Referee |  |
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| 01/07/2007 | Japan | - | Scotland | 3:1 | 3 | - | - |
| 05/07/2007 | Zambia | - | Spain | 1:2 | 3 | - | - |
| 08/07/2007 | Japan | - | Nigeria | 0:0 | 5 | - | - |
| U20 World Cup 2007 Canada - Appearances as Referee | |
|
|
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| 01/07/2007 | Japan | - | Scotland | 3:1 | 3 | - | - |
| 05/07/2007 | Zambia | - | Spain | 1:2 | 3 | - | - |
| 08/07/2007 | Japan | - | Nigeria | 0:0 | 5 | - | - |
| Complete name: | Germán Valentín Arredondo Ramírez |
| Born: | 27/05/1968 |
| Place of birth: |
Mexico |
| Nationality: |
Mexico |
| Height: | 179 cm |
| Weight: | 70 kg |