| U20 World Cup 2009 Egypt - Appearances as Referee |  |
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 |
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| 26/09/2009 | Ghana | - | Uzbekistan | 2:1 | 4 | - | - |
| 30/09/2009 | Brazil | - | Czech Republic | 0:0 | 9 | - | - |
| 13/10/2009 | Brazil | - | Costa Rica | 1:0 | 10 | - | - |
| U20 World Cup 2009 Egypt - Appearances as Referee | |
|
|
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| 26/09/2009 | Ghana | - | Uzbekistan | 2:1 | 4 | - | - |
| 30/09/2009 | Brazil | - | Czech Republic | 0:0 | 9 | - | - |
| 13/10/2009 | Brazil | - | Costa Rica | 1:0 | 10 | - | - |
| Complete name: | Alberto Undiano Mallenco |
| Born: | 08/10/1973 |
| Place of birth: |
Pamplona, 
Spain |
| Residence: | Ansoain |
| Nationality: |
Spain |
| Height: | 181 cm |
| Weight: | 73 kg |