Masato aka The Silver Wolf won the K1 MAX tournament twice and was a national celebrity during his prime time as a K1 fighter. Masato was known for his boxing but he was also well versed as a complete striker with excellent speed and timing.

During his early career, Masato stormed through to the top of the national K1 ranks and soon after winning the K1 MAX 2003 title. However the competition only sky rocketed when arch rivals, particularly Baukaw Por Pramuk who entered the tournament and gave the reigning champion a rude awakening by defeating him in dominant fashion in K1 MAX 2004. This only led Masato to raise his game and becoming a better fighter.