| Copa del Rey 2009/2010 - Appearances as Referee |  |
 |
 |
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| 21/01/2010 | Atlético Madrid | - | RC Celta | 1:1 | 6 | - | - |
| 11/02/2010 | Racing Santander | - | Atlético Madrid | 3:2 | 5 | - | 1 |
| Copa del Rey 2009/2010 - Appearances as Referee | |
|
|
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| 21/01/2010 | Atlético Madrid | - | RC Celta | 1:1 | 6 | - | - |
| 11/02/2010 | Racing Santander | - | Atlético Madrid | 3:2 | 5 | - | 1 |
| Complete name: | Alberto Undiano Mallenco |
| Born: | 08/10/1973 |
| Place of birth: |
Pamplona, 
Spain |
| Residence: | Ansoain |
| Nationality: |
Spain |
| Height: | 181 cm |
| Weight: | 73 kg |