 On March 21, 2015, Perez participated in the International Cup tournament and defeated Shane Sewell in the final to win the eponymous trophy.Prior to this, he had advanced by defeating a cruiserweight wrestler in the opening round and Roger Díaz in the semifinal.On August 16, 2015, Pérez participated in Sin Piedad but did not wrestle, instead attacking IWRG Rey del Ring Ricky Cruz and taking that title with him.