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Judoka Sosuke Matsumura from Japan won the bronze medal at the All Japan U21 Championships Saitama O100kg in 2018. He captured the gold at the World U21 Championships in Marrakech in 2019. With the Japanese team he won the junior mixed team World title in 2019.
Competitions - Medal overview B S G
- World Championships Juniors 001
- Continental Championships Juniors 010
- National Championships Juniors 101