Career
He played as a fly-half. Delegate Castillo played for Jockey Club de Rosario. He had 15 caps for Argentina, from 1991 to 1995, scoring 3 conversions, 5 penalties and 1 drop goal, 24 points on aggregate.
He was called for the 1991 Rugby World Cup, playing in two games and scoring 1 conversion and 2 penalties, 8 points on aggregate.
He once again would be called for the 1995 Rugby World Cup but this time he didn"t left the bench.