The 2003 El Castillo del Terror (Spanish for "The Tower of Terror") was a major lucha libre event produced and scripted by the Mexican International Wrestling Revolution Group (IWRG) professional wrestling promotion on November 2, 2003. The 2003 El Castillo del Terror was the third ever IWRG El Castillo del Terror event held. The main event was the eponymous Castillo del Terror (Spanish for "Tower of Terror") Steel cage match where the last person eliminated would be forced to take off his wrestling mask or have his hair shaved off as a result of the loss.

Due to incomplete records of the show, the only known results state that Mega was listed as the winner of the El Castillo del Terror main event while Comando Alfa lost the match and thus had to unmask and state his given name. The remaining results are unknown.

The Mexican wrestling promotion International Wrestling Revolution Group (IWRG; Sometimes referred to as Grupo Internacional Revolución in Spanish) has a long-standing history of holding major event focused on a multi-man steel cage match where the last wrestler left in the cage would be forced to either remove their wrestling mask or have their hair shaved off under Lucha de Apuestas, or "bet match", rules. Starting in the year 2000 IWRG has promoted a fall show, around the Mexican Day of the Death, under the name El Castillo del Terror ("The Tower of Terror"), creating an annual event on their major show calendar that has been held almost every year since 2000. The 2003 El Castillo del Terror show was the third overall show under that name, with IWRG not holding a Castillo del Terror in 2001.

...
Wikipedia