MADRID (Interstat) — Juan Serrano scored in the 82nd minute to deliver CA Antoniano U19 a 1-0 victory over Castellon in the Copa del Rey Juvenil on Thursday. The home side secured the upset at Campo de Futbol Municipal, defying projections that heavily favored the visitors. Interstat’s game simulator had forecast a 3-1 win for Castellon, which was given a 70.6 percent probability to win. The result gives Antoniano a winning start to the Spanish youth competition, while Castellon begins its campaign with a loss.