Following Uruguay's successful World Cup at Africa where they finished in the fourth place, Castillo returned to Cali to face the Torneo Finalización where "Los Azucareros" failed to qualify the playoffs to contest the league title. Not obstant the Uruguayan was a key player in the Copa Colombia title obtention. In the cup final Cali defeat 2–0 to Itagüí Ditaires to earn for first time in the club's history that trophy after failing to win it in 1962, 1963 and 1981.