| WC Qualifiers CONCACAF 2004/2005 - Appearances as Referee |  |
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| 19/03/2004 | Dom. Republic | - | Anguilla | 0:0 | 3 | - | - |
| 19/08/2004 | Jamaica | - | USA | 1:1 | 1 | - | - |
| WC Qualifiers CONCACAF 2004/2005 - Appearances as Referee | |
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| 19/03/2004 | Dom. Republic | - | Anguilla | 0:0 | 3 | - | - |
| 19/08/2004 | Jamaica | - | USA | 1:1 | 1 | - | - |
| Complete name: | William Mattus Vega |
| Born: | 17/04/1964 |
| Place of birth: |
Costa Rica |
| Nationality: |
Costa Rica |
| Height: | 169 cm |
| Weight: | 75 kg |