{{TitleHistorySpan|[[UWA World Welterweight Tournament, 1976|eight man tournament for vacant championship]]}}
{{TitleHistorySpan|[[UWA World Welterweight Tournament, 1976|eight man tournament for vacant championship]]}}
{{TitleHistoryLine|1|[[Villano III]]|[[Huracan Ramirez]]|[[1975]].[[12.28]]|[[Plaza Monumental, Monterrey]]|<ref>Both [https://www.facebook.com/96186896558/posts/10154357755126559 Box Y Lucha] and [https://www.facebook.com/LuchaLibreDeAyerdeHoyYSiempre/photos/a.461505387230535.102143.s454597374588003/1425027160878348/?type=3 DJ Spectro] have the December 28, 1975 in Plaza Monumental de Monterrey information; it was originally scheduled for 12/14 in Mexico City and is sometimes listed there, but that show was canceled</ref>}}
{{TitleHistoryLine|1|[[Villano III]]|[[Huracan Ramirez]]|[[1975]].[[12.28]]|[[Plaza de Toros Monumental]]|<ref>Both [https://www.facebook.com/96186896558/posts/10154357755126559 Box Y Lucha] and [https://www.facebook.com/LuchaLibreDeAyerdeHoyYSiempre/photos/a.461505387230535.102143.s454597374588003/1425027160878348/?type=3 DJ Spectro] have the December 28, 1975 in Plaza Monumental de Monterrey information; it was originally scheduled for 12/14 in Mexico City and is sometimes listed there, but that show was canceled</ref>}}
{{TitleDefenseLine|1|[[Alberto Muñoz]]|[[1976]].[[05.19]]|[[Palacio de los Deportes, Mexico City]]|<ref>[http://wrestlingclassics.com/.ubb/ultimatebb.php?ubb=get_topic;f=1;t=144367#000000 Matt Farmer]</ref>}}
{{TitleDefenseIffy|1|[[Hashi Masataka]]|[[1976]].[[01.20]]|[[Arena Aficion]]|<ref>Box Y Lucha 1214</ref>}}
{{TitleDefenseIffy|2|[[Alberto Muñoz]]|[[1977]].[[03.24]]|[[Plaza Alberto Balderas, Ciudad Juarez, Chihuahua]]|<ref>Box Y Lucha 1275</ref>}}
{{TitleDefenseLine|2|[[Babe Face]]|[[1976]].[[02.01]]|[[Plaza de Toros Monumental]]|<ref>Halcon 190</ref>}}
{{TitleDefenseLine|3|[[Huracán Ramírez]]|[[1977]].[[05.05]]|[[Arena Poza Rica]]|<ref>[http://superluchas.com/2015/05/05/en-un-dia-como-hoy-1977-francisco-flores-inaugura-la-arena-poza-rica-ruleta-de-mascaras-en-el-toreo/ SuperLuchas]</ref>}}
{{TitleDefenseLine|3|[[Ultraman]]|[[1976]].[[03.14]]|[[Plaza de Toros Monumental]]|<ref>Halcon 194, Halcon 196</ref>}}
{{TitleDefenseLine|4|[[Alberto Muñoz]]|[[1976]].[[05.19]]|[[Palacio de los Deportes, Mexico City]]|<ref>[http://wrestlingclassics.com/.ubb/ultimatebb.php?ubb=get_topic;f=1;t=144367#000000 Matt Farmer]</ref>}}
{{TitleDefenseIffy|5|[[Alberto Muñoz]]|[[1977]].[[03.24]]|[[Plaza Alberto Balderas, Ciudad Juarez, Chihuahua]]|<ref>Box Y Lucha 1275</ref>}}
{{TitleDefenseLine|6|[[Huracán Ramírez]]|[[1977]].[[05.05]]|[[Arena Poza Rica]]|<ref>[http://superluchas.com/2015/05/05/en-un-dia-como-hoy-1977-francisco-flores-inaugura-la-arena-poza-rica-ruleta-de-mascaras-en-el-toreo/ SuperLuchas]</ref>}}
Takeshi Minamino won the vacated championship on September 9th, 2004 in a 3 way match. The current status of the Title is unclear as Minamino only defended the title once since winning it.
In February of 2010, Negro Casas appeared on CMLL's Ras de Lona show (19 minute mark), mentioning this championship as one of the ones he currently held. The belt, only briefly shown, appeared to be the second version of this title. It's unclear how Negro Casas came to have this belt, and he has no known defenses. To avoid setting a troubling precedent, Negro Casas will not officially be listed as champion until someone explains how he won the belt, or he actually defends the championship.
History of Championship
Championship Confusion
Championship reigns previously noted for Filoso, Osamu Namiguchi and Katushiko Nakajima are believed to actually been promoted as WWA World Junior Light Heavyweight Championship matches, not using the actual belt or championship lineage. See that title for more information.
championship matches which were announced, but results were not found
Sources:
↑Both Box Y Lucha and DJ Spectro have the December 28, 1975 in Plaza Monumental de Monterrey information; it was originally scheduled for 12/14 in Mexico City and is sometimes listed there, but that show was canceled
