In parallel, he fought a Pro Wrestling charity match for victims of 2011 Tōhoku earthquake and tsunami and Fukushima Daiichi nuclear disaster at Inoki Genome Federation. He became IGF Champion and defended the title five times, before losing it to Kazuyuki Fujita on July 14, 2012. He won his six fights in Pro Wrestling by (T)KO against Shinichi Suzukawa, Erik Hammer, Kazuyuki Fujita, Montanha Silva, Josh Barnett and Tim Sylvia. On December 4, 2011, at IGF – Fighting Spirit Festival in Iwaki, Fukushima, he faced in a kickboxing charity exhibition match Japanese kickboxer Masayoshi Kakutani and won by TKO in the first round.