Pedzisa mutsara unotevera: Musi waGumiguru 24 wegore rimwe chetero, Nishioka akarwa neRendall Munroe paRyōgoku Kokugikan, ndokumurova nesarudzo inonyengetedza yakabvumirana kuti awedzere nhevedzano yake yekudzivirira kumitambo mishanu. Nishioka aida zvikuru mutambo wokubatanidza nemhare yemamwe masangano zvikurukuru pashure pacho. Apo Nishioka akatumidzwa zita reJapan Fighter of the Year muna 2010, akagamuchira vhidhiyo meseji kubva kuna Fernando Montiel achida kurwa pamhemberero yemubairo muna Ndira 2011. Nishioka akati akanga achida kurwisana chero nguva nokukurumidza pashure uye musasa wake aida kuronga mutambo, asi chibvumirano haana kugadziriswa sezvo Montiel akarasikirwa kuna Nonito Donaire muna February. Musi waApril 8, 2011, akauraya Mauricio Javier Muñoz weArgentina mumutambo wechipfumbamwe mukudzivirira kwake kwechitanhatu kwakaendeswa kubva kuRyogoku Kokugikan muTokyo kuenda kuWorld Memorial Hall muKobe nekuda kwe
Kudengenyeka kweTōhoku.