| CONCACAF Nations League A 2023/2024 - Appearances as Referee |  |
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| 13/10/2023 | Cuba | - | Honduras | 0:0 | 3 | - | - |
| 21/11/2023 | Trinidad & Tobago | - | USA | 2:1 | 4 | 1 | - |
| 22/03/2024 | Panama | - | Mexico | 0:3 | 2 | - | - |
| CONCACAF Nations League A 2023/2024 - Appearances as Referee | |
|
|
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| 13/10/2023 | Cuba | - | Honduras | 0:0 | 3 | - | - |
| 21/11/2023 | Trinidad & Tobago | - | USA | 2:1 | 4 | 1 | - |
| 22/03/2024 | Panama | - | Mexico | 0:3 | 2 | - | - |
| Complete name: | Walter Alexander López Castellanos |
| Born: | 25/09/1980 |
| Place of birth: |
Guatemala |
| Nationality: |
Guatemala |