 At PRIDE 11, Otsuka got his first victory against American wrestler Mike Bourke, who had taken the fight in short notice, yet in turn outweighed Otsuka by 60ibs.Despite missing another dropkick, Otsuka worked from the bottom and locked both of his opponent's arms in a double armbar, making him submit.The technique was originally being used as a finishing move by Otsuka's fellow Battlarts pro wrestler, Carl Greco.