| Friendlies 2011 - Appearances as Referee |  |
 |
 |
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| 26/03/2011 | Panama | - | Bolivia | 2:0 | - | - | - |
| 08/10/2011 | Costa Rica | - | Brazil | 0:1 | 6 | - | 1 |
| 12/11/2011 | Mexico | - | Serbia | 2:0 | 3 | 1 | - |
| 11/12/2011 | Cuba | - | Costa Rica | 1:1 | 4 | - | - |
| Friendlies 2011 - Appearances as Referee | |
|
|
||||
| 26/03/2011 | Panama | - | Bolivia | 2:0 | - | - | - |
| 08/10/2011 | Costa Rica | - | Brazil | 0:1 | 6 | - | 1 |
| 12/11/2011 | Mexico | - | Serbia | 2:0 | 3 | 1 | - |
| 11/12/2011 | Cuba | - | Costa Rica | 1:1 | 4 | - | - |
| Complete name: | Walter Alexander López Castellanos |
| Born: | 25/09/1980 |
| Place of birth: |
Guatemala |
| Nationality: |
Guatemala |