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Tsunetane Oda

Oda Tsunetane
小田常胤
Jōin Oda.jpg
Born Oda Join
March 10, 1892
Honshu, Japan
Died February 11, 1955
Native name 小田常胤
Style Judo
Teacher(s) Kanō Jigorō
Kyuzo Mifune
Rank Judo: 9th Dan

Tsunetane Oda (小田常胤?, Oda Tsunetane, March 10, 1892 – February 11, 1955) was a judoka who was influential in the development of Kosen judo. His correct name was Join Oda, but through a misinterpretation of the kanji 常胤 he is more commonly known as Tsunetane.

Oda was born in Yamanashi Prefecture, Honshu, Japan in 1892. He started studying judo in 1909 at the age of 17 at Numazu Kōtō senmon gakkō (高等専門学校?, Higher Special School), joining the Kodokan the following year and receiving his 1st Dan in 1911.

He excelled at newaza (ground work) and felt that it warranted greater emphasis than the Kodokan gave it. He worked with Hajime Isogai to develop the groundwork-emphasing 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 sankaku-jime (三角絞?). This technique has been adopted into other martial arts and fighting systems including Brazilian jiu-jitsu, and mixed martial arts. The triangle choke was said to be able to be applied in most directions.


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