Ryunosuke Haga

Ryunosuke Haga (羽賀 龍之介) is a male Japanese judoka who became world champion in the under 100 kg division in 2015. His favoured technique is Uchi Mata.

Born in Miyazaki, Haga started judo at the age of 5. In 2010, he won the gold medal in the -100 kg weight class at the World Judo Championships Juniors in Agadir.

In 2011, Haga won the Universiade in Shenzhen. In 2015, he won the gold medal in the Half-heavyweight (100 kg) division at the 2015 World Judo Championships.

He won the Grand Slam Tokyo and Grand Prix Düsseldorf in 2015.

Bronze medalist in the 2016 Rio Olympics.

Haga's father, Yoshio, was also a judoka. Like his father who was a winner of the Kodokan Cup, he won the competition in 2010 and 2011. Furthermore, he maintains a decade-long friendship with Ōzeki Kirishima Tetsuo, a professional sumo wrestler.