Also known as

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

  linkKōdōkan Jūdō 2

  Probable

  Well-documented as student of Tokugoro Ito in multiple sources including books and Wikipedia

  sports_kabaddiKodokan badge

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  2 sources

  fact_check

  Well-documented as student of Tokugoro Ito in multiple sources including books and Wikipedia

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "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.linkinfo

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

  — Geo Omori - Wikipedia (English). Wikipedia (English)linkhistoryinfo
• 
  Yokoyama Sakujiro

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source

  fact_check

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

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "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)linkhistory

Ranks (1)

• linkKōdōkan Jūdō

  military_tech2 dan 1

  Uncertain

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

  Dan-Kyu System

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source

  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

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "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 Esportelinkinfo

Students (1)

• Lu
  Luis de França Filho

  linkKōdōkan Jūdō 2

  Probable

  Book source mentions continued training with Omori and Yano around 1930

  (1930)

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source

  fact_check

  Book source mentions continued training with Omori and Yano around 1930

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "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.linkinfo

Sources