Masakatsu Ueda (born December 21, 1977) is a professional Japanese mixed martial artist who currently competes in the bantamweight division of Pancrase. Ueda was also a college level wrestler in Japan, where holds a win over fellow mixed martial artist and Japanese superstar Norifumi Yamamoto, better known as "Kid" Yamamoto. Ueda has also won many national titles in combat wrestling. He also won the All Japan Shooto Grappling championship, and both A and B class Shooto Rookie Tournaments. He is a blue belt in Brazilian Jiu-Jitsu under Yuki Nakai.
Source: “Masakatsu Ueda”, English Wikipedia (CC BY-SA 4.0), excerpt