Arena Naucalpan 37th Anniversary Show

The Arena Naucalpan 37th Anniversary Show was a major annual professional wrestling event produced and scripted by the Mexican professional wrestling promotion International Wrestling Revolution Group (IWRG), which took place on December 21, 2014, in Arena Naucalpan, Naucalpan, State of Mexico, Mexico. As the name implies the show celebrated the 37th Anniversary of the construction of Arena Naucalpan, IWRG's main venue in 1977. The show is IWRG's longest-running show, predating IWRG being founded in 1996 and is the fourth oldest, still held, annual show in professional wrestling.

The main event of the anniversary show was a 10-man steel cage match contested under Lucha de Apuestas, or "bet match" rules, where the last man in the ring would be forced to either unmask or have their hair shaved off as a result. Canis Lupus, El Hijo del Máscara Año 2000, El Hijo del Pirata Morgan, Máscara Año 2000, Máscara Sagrada, Pirata Morgan, Rayo de Jalisco Jr. and Súper Nova all climbed out of the cage, leaving Oficial AK-47 to defeat X-Fly, thanks to help from his regular tag team partner Oficial 911. Afterwards X-Fly was forced to be shaved bald as a result of his loss.