Santo's wrestling titles:

Comision de Box y Lucha Libre Mexico, D.F.

WELTERWEIGHT TITLE: 
     21 Feb 1943, El Santo defeats Ciclon Veloz
(note: El Hijo del Santo won this title in Oct 1993)

MIDDLEWEIGHT TITLE: 
     19 March 1943, El Santo defeats Jesus "Murcielago" Velazquez
     31 May 1946: El Santo defeats Tuffy Truesdel
     14 Sept 1956: El Santo wins title
     28 June 1963: El Santo wins title
(note: El Santo's brother "Black" Guzman won this title in 1941,
and El Hijo del Santo won this title in January 1996)

LIGHT HEAVYWEIGHT TITLE:
     14 October 1966: El Santo wins title  
(note: El Santo's brother "Black" Guzman won this title in 1943
and 1945)
     
National Wrestling Alliance

WELTERWEIGHT TITLE:
     13 March 1946: El Santo defeats Pete Pancof
     25 July 1953: El Santo wins title

WORLD MIDDLEWEIGHT TITLE:
     1 January 1954: El Santo wins title
(note: El Santo's brother "Black" Guzman won this title in
December 1941)

Other notes:
     COMISION DE BOX Y LUCHA LIBRE Lt Heavyweight title: Mil
Mascaras won June 1967 and March 1968
     Welterweight title: Blue Demon won in 1955, again on 4 April
1962; Huracan Ramirez won Oct '65, Aug '69, March '72; Blue Demon
won 30 July 1976
     NWA Welterweight: Blue Demon won 25 July 1953, again on 29
June 1975; Huracan Ramirez won 5 Aug '65
     UNIVERSAL WRESTLING ASSOC World Welterweight title: El Hijo
del Santo won 27 Apr '90 and 25 May '94