The NWA World Historic Middleweight Championship is a professional wrestling championship promoted by Consejo Mundial de Lucha Libre (CMLL). The official definition of the middleweight weight class in Mexico is between 82 kg (181 lb) and 87 kg (192 lb), but is not always strictly enforced. For example, previous NWA World Historic Middleweight Champion Último Guerrero is billed as weighing 95 kg (209 lb). Místico is the current champion, he is the eighth champion overall and he is in his first reign.

Renato Ruíz Cortes, better known by his ring name Averno (Hell), is a Mexican professional wrestler, currently signed to Consejo Mundial de Lucha Libre (CMLL), where he is the current CMLL World Light Heavyweight Champion in his first reign. Ruíz initially worked for (CMLL) as Rencor Latino in 1995, but did not achieve any significant success until he adopted the ring name Averno in June 2001. Under his new ring name, Ruíz went on to become a one–time CMLL World Middleweight, CMLL World Trios Champion, NWA World Middleweight Champion and NWA World Historic Middleweight Champion and a three–time CMLL World Tag Team Champion. His ring name is most commonly translated as "Hell" in English.