As it was a professional wrestling championship, the championship was not won not by actual competition, but by a scripted ending to a match determined by the bookers and match makers.[b] On occasion the promotion declares a championship vacant, which means there is no champion at that point in time. This can either be due to a storyline,[c] or real life issues such as a champion suffering an injury being unable to defend the championship,[d] or leaving the company.[e]
The first and so far only champion is Místico, who was under contract with Consejo Mundial de Lucha Libre (CMLL) at the time, but worked for IWRG under a talent sharing agreement between the two companies.[6] The talent sharing agreement ended in 2008, but the Super Welterweight Championship has not officially been declared vacant even. It is considered inactive as the IWRG simply does not promote it or refer to it any more.
^One example the weightlimits not being strictly enforced is Mephisto winning the CMLL World Welterweight Championship, a championship with a 78 kg (172 lb) upper limit despite weighing 90 kg (200 lb).
^Hornbaker (2016) p. 550: "Professional wrestling is a sport in which match finishes are predetermined. Thus, win–loss records are not indicative of a wrestler's genuine success based on their legitimate abilities – but on now much, or how little they were pushed by promoters"[2]
^Duncan & Will (2000) p. 271, Chapter: Texas: NWA American Tag Team Title [World Class, Adkisson] "Championship held up and rematch ordered because of the interference of manager Gary Hart"[3]
^Duncan & Will (2000) p. 20, Chapter: (United States: 19th Century & widely defended titles – NWA, WWF, AWA, IW, ECW, NWA) NWA/WCW TV Title "Rhodes stripped on 85/10/19 for not defending the belt after having his leg broken by Ric Flair and Ole & Arn Anderson"[4]
^Duncan & Will (2000) p. 201, Chapter: (Memphis, Nashville) Memphis: USWA Tag Team Title "Vacant on 93/01/18 when Spike leaves the USWA."[5]
^It is not clear exactly when in 2007 IWRG and CMLL stopped working together, making the length of Místico's reign too uncertain to calculate.
Hornbaker, Tim (2016). "Statistical notes". Legends of Pro Wrestling - 150 years of headlocks, body slams, and piledrivers (Revised ed.). New York, New York: Sports Publishing. ISBN978-1-61321-808-2.
Duncan, Royal; Will, Gary (2000). Wrestling title histories: professional wrestling champions around the world from the 19th century to the present. Waterloo, ON: Archeus Communications. ISBN0-9698161-5-4.