Prisión Fatal (June 2013) was an annually recurring major professional wrestling event, produced by the Mexico based International Wrestling Revolution Group (IWRG) professional wrestling promotion. The event took on June 23, 2013, at "Arena Naucalpan" in Naucalpan, State of Mexico, IWRG's main venue. The show was the third overall show promoted under the Prisión Fatal name and the first of two shows in 2014 billed as Prisión Fatal. The main event was the eponymous Prisión Fatal (Spanish for "Deadly Prison") Steel cage match where the last person remaining in the cage was forced to unmasked or shaved bald as per the match stipulation. The Prisión Fatal match saw Dr. Cerebro face off against X-Fly where the two competitors were chained together by a long steel change that was attached to a dog collar around their necks. In the end Dr. Cerebro defeated X-Fly and forced him to have all his hair shaved off after the match.