All-Japan Judo Championships
Yamashita remained undefeated in both domestic and international competitions, though he drew several matches with two-time Olympic gold medalist Hitoshi Saito. Yamashita faced Saito in the final match of the All-Japan Judo Championships for 3 consecutive years from 1983 to 1985, and emerged victorious in every single one of those matches. After suffering from numerous injuries throughout his career, Yamashita decided to retire from competitive judo on June 17, 1985 at only 28 years of age.