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Jigoro Kano and Sumiyuki Kotani demonstrating a Judo technique in London in 1933

Japanese Martial Arts Lineage Map

A selective visual map connecting classical Jujutsu, Kodokan Judo, Aikido, Okinawan Karate, and later international grappling pathways.

Two Sambo athletes in red and blue jackets grappling during the 2015 European Games

Sambo

Sambo is a Soviet-developed martial art and combat sport shaped by Judo, regional wrestling traditions, and organised self-defence training.

Judoka Saeid Mollaei competes in the men’s 81 kilogram event at the 2018 Asian Games

Judo at the Asian Games

Judo entered the Asian Games in Seoul in 1986 and now features men’s and women’s weight-category events plus a mixed-team competition.

One judoka throws another during a Judo demonstration on tatami mats

Judo Technique Directory

Browse and search the 100 officially named Kodokan Judo techniques by classification, kata, Gokyo group, and documented promotion references.

One judoka lifting another during a throw on a competition mat

Keito-waza

Keito-waza is an editorial learning index that connects related Judo names and variations without changing the official Kodokan classification.

Visitors and manga shelves in the main hall of Kyoto International Manga Museum

Judo in Manga and Anime

Judo manga and anime have represented Japanese dojo, school clubs, competition and women’s Judo through changing genres from the postwar period onward.

Two heavyweight judoka engaged during the 2018 World Judo Championships

Kaeshi-waza

Kaeshi-waza are Judo counter techniques that use the timing, direction or imbalance of an opponent’s attack to produce a legal response.

Two judoka perform a technique during a Kodokan demonstration

Renraku-waza

Renraku-waza are Judo combinations that connect attacks through the opponent’s changing posture and reaction rather than treating each technique in isolation.

Two judoka demonstrate ude-hishigi-ude-gatame in Katame-no-kata

Kansetsu-waza

Kansetsu-waza are the ten Kodokan joint-locking techniques, whose classical syllabus is broader than the joint locks permitted in modern IJF contests.