Omori Kojiro

Also known as

大森 譲治 · 大森 譲次 · Omori Jyoji · Jyoji Omori · George Omori

Description

Japanese-Brazilian martial artist considered one of the founders of Brazilian Jiu-Jitsu. Moved to Brazil in 1925, opened the first jujitsu school in São Paulo in 1931. Known for his extensive fight career (503 matches) and contributions to the development of Vale Tudo in Brazil.

Teachers (2)

• 
  Itō Tokugorō

  sports_martial_artsKōdōkan Jūdō Confirmed

  Confirmed

  Independent sources state it.

  The evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.

  location_onKodokan badge

  fact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  2 sources expand_more

  fact_check

  Independent sources state it.

  “Foi discípulo de um dos maiores lutadores do Kodokan, Tokugoro Ito”

  — SILVA, Elton; CORRÊA, Eduardo. Muito antes do MMA: O legado dos precursores do Vale Tudo no Brasil e no mundo. 2020.info

  “He learned under Tokugoro Ito and was a training partner of the famed Sanpo Toku”

  — Geo Omori - Wikipedia (English). Wikipedia (English)link history info
• 
  Yokoyama Sakujiro

  fact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source expand_more

  fact_check

  Japanese Wikipedia mentions involvement with Yokoyama Sakujiro at Higher Normal School, but relationship not clearly defined as teacher-student

  “高師で柔道教授をつとめた横山作次郎とも関わった。”

  — ジオ大森 - Wikipedia (Japanese)link history

Lineage

• Kōdōkan JūdōItō Tokugorō ← Kanō Jigorō · 2 generations

Ranks (1)

• sports_martial_artsKōdōkan Jūdō

  military_tech2 dan Possible

  Possible

  Conflicting information: 2 dan unofficial per academic thesis vs 3 dan per 1958 book and 1 dan at age 17 per Japanese Wikipedia

  Some evidence points to the claim, but it is thin, indirect, or in unresolved conflict with other evidence.

  Dan-Kyu System

  fact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source expand_more

  fact_check

  Conflicting information: 2 dan unofficial per academic thesis vs 3 dan per 1958 book and 1 dan at age 17 per Japanese Wikipedia

  “Geo Omori 2º dan não oficial”

  — MAÇANEIRO, Gustavo Goulart Braga. Desenvolvimento organizacional do judô brasileiro. São Paulo : Escola de Educação Física e Esporte, Universidade de São Paulo, 2024. Dissertação de Mestrado em Estudos Socioculturais e Comportamentais da Educação Física e Esportelink info

Students (1)

• person
  Luis de França Filho

  sports_martial_artsKōdōkan Jūdō Probable

  Probable

  Book source mentions continued training with Omori and Yano around 1930

  The evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.

  (1930)

  fact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source expand_more

  fact_check

  Book source mentions continued training with Omori and Yano around 1930

  “Posteriormente, deu continuidade ao seu aprendizado no Rio de Janeiro com Geo Omori, Takeo Yano e Hélio Gracie”

  — SILVA, Elton; CORRÊA, Eduardo. Muito antes do MMA: O legado dos precursores do Vale Tudo no Brasil e no mundo. 2020.info

Sources

Identifiers