International career
Also in 1985 he formed part of a selection of youth who participated in a tournament in Trinidad and Tobago and then at the Central American Games held in Guatemala.
Castro Borja was a symbol within the national team in the years of 1992 to 1997. He is still remembered as one of the most passionate players who defended his national colors. He had great physical stamina, his sweeper skills were to be admired and also caused problems for rival strikers. He participated in the 1990, 1994, 1998 and 2002 World Cup qualification campaign. [2] He scored the winner against Mexico in the 1994 World Cup qualifiers, which was the first time El Salvador had defeated Mexico in several years.
International goals
| # | Date | Venue | Opponent | Score | Result | Competition |
|---|---|---|---|---|---|---|
| 1 | 18 February 1992 | Estadio Cuscatlán, San Salvador, El Salvador |  United States | 1-0 | 2-0 | Friendly match |
| 2 | 19 July 1992 | Estadio Rigoberto López, Managua, Nicaragua |  Nicaragua | 3-0 | 5-0 | 1994 FIFA World Cup qualification |
| 3 | 23 July 1992 | Estadio Cuscatlán, San Salvador, El Salvador | Nicaragua | 1-0 | 5-1 | 1994 FIFA World Cup qualification |
| 4 | 23 July 1992 | Estadio Cuscatlán, San Salvador, El Salvador | Nicaragua | 3-0 | 5-1 | 1994 FIFA World Cup qualification |
| 5 | 4 April 1993 | Estadio Cuscatlán, San Salvador, El Salvador |  Mexico | 1–0 | 2–1 | 1994 FIFA World Cup qualification |
| 6 | 23 July 2000 | Estadio Cuscatlán, San Salvador, El Salvador |  Saint Vincent and the Grenadines | 2–1 | 7–1 | 2002 FIFA World Cup qualification |
