| U20 World Cup 2017 South Korea - Appearances as Referee |  |
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 |
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| 21/05/2017 | Italy | - | Uruguay | 0:1 | 5 | - | - |
| 26/05/2017 | Germany | - | Vanuatu | 3:2 | 3 | - | - |
| U20 World Cup 2017 South Korea - Appearances as Referee | |
|
|
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| 21/05/2017 | Italy | - | Uruguay | 0:1 | 5 | - | - |
| 26/05/2017 | Germany | - | Vanuatu | 3:2 | 3 | - | - |
| Complete name: | Walter Alexander López Castellanos |
| Born: | 25/09/1980 |
| Place of birth: |
Guatemala |
| Nationality: |
Guatemala |