Ryūichi Yamamoto (山本 龍一, Yamamoto Ryūichi, born May 8, 1984), known by his shikona Yamamotoyama Ryūta (山本山 龍太), or simply Yama, [1] is a Japanese retired sumo wrestler from the city of Saitama in Saitama Prefecture. He made his professional debut in January 2007, and reached the top makuuchi division in January 2009.

Yamamotoyama Ryuta - 山本山 龍太 (born May 8, 1984) is a former Japanese professional sumo wrestler from Saitama City, Saitama. He made his debut in January 2007 and wrestled for Onoe stable. He reached the makuuchi division in January 2009. His highest rank was maegashira 9 and he retired in May 2011.

2022年7月5日 · Ryuichi Yamamoto left Japan after a match-fixing scandal led to his retirement from organized sumo. Now he’s carving out a career in Hollywood. Strength comes in many forms and has many...

2024年1月26日 · One popular Yama feature is that he’s the Heaviest Japanese Human Being in Recorded History, at 600 pounds! Even at that size, he performs “shiko” (shoulder-high leg lifts) and “matawari” (full leg splits) with ease.

2025年2月26日 · Ryuichi Yamamoto, who goes by the name Yama and competed as a professional sumo wrestler in Japan, has started teaching sumo classes at the Arnold Brazilian Jiu Jitsu and Martial Arts Studio.

Yama is a former professional sumo wrestler who fought from Onoe stable beginning in January, 2007 at the age of 22, and at his peak weight of 586 lbs. was the heaviest Japanese-born sumo wrestler in history.

Yamamotoyama native of Saitama, Japan, is a famous sumo wrestler who has a highest ranking in Makuuchi division in 2009. He is said to be the heaviest wrestler.