was a

judo is an unarmed gendai budō, modern Japanese martial art, combat sport, Olympic sport (since 1964), and the most prominent form of jacket wrestling competed internationally.『日本大百科全書』電子版【柔道】(CD-ROM version of Encyc ...

ka who was influential in the development of

Kosen judo is a variation of the Kodokan judo competitive ruleset that was developed and flourished at the () technical colleges in Japan in the first half of the twentieth century. Kosen judo's rules allow for greater emphasis of than typically takes pla ...

. His correct name was Tsunetane Oda, but through a misinterpretation of the kanji 常胤 he is more commonly known as Join.

Biography

Oda was born in

Yamanashi Prefecture is a prefecture of Japan located in the Chūbu region of Honshu. Yamanashi Prefecture has a population of 787,592 (1 February 2025) and has a geographic area of 4,465 km2 (1,724 sq mi). Yamanashi Prefecture borders Saitama Prefecture to the n ...

Honshu , historically known as , is the largest of the four main islands of Japan. It lies between the Pacific Ocean (east) and the Sea of Japan (west). It is the list of islands by area, seventh-largest island in the world, and the list of islands by ...

, Japan in 1892. He started studying

in 1909 at the age of 17 at

Numazu is a city located in eastern Shizuoka Prefecture, Japan. , the city had an estimated population of 189,486 in 91,986 households, and a population density of 1,014 persons per km2. The total area of the city is . Geography Numazu is at the n ...

, joining the

Kodokan The , or ''Kōdōkan'' (講道館), is the headquarters of the worldwide judo community. The ''kōdōkan'' was founded in 1882 by Kanō Jigorō, the founder of judo, and is now an eight-story building in Tokyo. Etymology Literally, ''kō'' ...

the following year and receiving his 1st Dan in 1911.

Judo career

He excelled at

newaza Grappling is a fighting technique based on throws, trips, sweeps, clinch fighting, ground fighting and submission holds. Grappling contests often involve takedowns and ground control, and may end when a contestant concedes defeat. Should t ...

(ground work) and felt that it warranted greater emphasis than the Kodokan gave it. He worked with Hajime Isogai to develop the groundwork-emphasizing style of judo taught at the Kōtō senmon gakkō schools, known as kosen judo. It is said that Oda vision of newaza completed that of Kano's. Although sources often cite Yaichibei Kanemitsu on his place, Oda is sometimes credited with developing the strangulation technique . This technique has been adopted into other martial arts and fighting systems including Brazilian jiu-jitsu, and

mixed martial arts Mixed martial arts (MMA) is a full-contact fighting combat sport, sport based on strike (attack), striking and grappling; incorporating techniques from various combat sports from around the world. In the early 20th century, various inter-s ...

. The triangle choke was said to be able to be applied in most directions.The MMA Encyclopedia by Jonathan Snowden, Kendall Shields
/ref> Oda was awarded the rank of 9th dan in judo in 1948 and died in 1955.

Bibliography

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References

{{DEFAULTSORT:Oda, Tsunetane 1892 births 1955 deaths Japanese male judoka Judoka trainers Martial arts writers