 Ramba uchiverenga ndima ino - Yamaguchi akakunda All-Japan Judo Championships ka10 akateedzana kubva muna 19781987 kaviri muchikamu che -50 kg, kanomwe muchikamu che -52 kg uye akahwina menduru yake yekutanga pa 1980 World Judo Championships. Akaenderera mberi kuhwina menduru dzesirivheri ina uye menduru yegoridhe imwe paWorld Judo Championships. Akakundawo menduru yebronze muchikamu che -52 kg pamitambo yeOlympic yezhizha ya1988 muSeoul, uko judo yevakadzi yakaitwa semutambo wekuratidzira. Akasiya makwikwi ejudo muna 1989 paakapedza kudzidza kuYunivhesiti yeTsukuba. Akashanda semurairidzi weYunivhesiti yeTsukuba uye Musashi University kubvira paakasiya basa. 