Keiichiro Yamamiya (born July 12, 1972) is a Japanese mixed martial artists. After regularly competing in the light heavyweight and middleweight divisions, Yamamiya now competes in the welterweight division. He holds notable victories over Chael Sonnen, Nate Marquardt, Chris Lytle, Minoru Suzuki (2x), Ikuhisa Minowa, Yuki Kondo, Denis Kang, and has a draw against Keith Jardine.
Read more about Keiichiro Yamamiya: Championships and Accomplishments, Mixed Martial Arts Record