How are they connected?
The chain of teachers and students between two people. Every link is a sourced teacher–student relationship.
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Rorion Gracie and Victor Koga are not in the same lineage. They are connected through 8 people.
Brazilian jiu-jitsu → Jeet Kune Do → Shooto → Sambo
9 steps · Weakest link: Probable
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Hélio GracieTeacher of Rorion GracieBoth lines descend from heresports_martial_artsBrazilian jiu-jitsu ConfirmedConfirmedThe official Rorion Gracie biography states he is the eldest son of Hélio Gracie, was introduced to Gracie Jiu-Jitsu before he could walk, and trained under his father's supervision from childhood; the Royce Gracie Lifestyle article corroborates the father-son training relationshipThe evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkThe official Rorion Gracie biography states he is the eldest son of Hélio Gracie, was introduced to Gracie Jiu-Jitsu before he could walk, and trained under his father's supervision from childhood; the Royce Gracie Lifestyle article corroborates the father-son training relationshipvisibilityFirst-hand“Rorion Gracie, the eldest son of Grand Master Helio Gracie, was introduced to Gracie Jiu-Jitsu before he could walk. Trained under his father's watchful eye, he was raised to become a master of the art.”
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Rickson GracieStudent of Hélio Graciesports_martial_artsBrazilian jiu-jitsu ConfirmedConfirmedRickson is the son of Hélio Gracie and trained under him from childhood; awarded black belt at 18The evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.(1965)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkRickson is the son of Hélio Gracie and trained under him from childhood; awarded black belt at 18“Treinador Hélio Gracie (BJJ)”
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Jean Jacques MachadoStudent of Rickson Graciesports_martial_artsBrazilian jiu-jitsu ConfirmedConfirmedRickson Gracie's own memoir names him as his student and describes his training in Rio as a teenager.The evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.
fact_checkassessed by FSMverified
3 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkRickson Gracie's own memoir names him as his student and describes his training in Rio as a teenager.visibilityFirst-hand“I got to know Jean Jacques well when he was a teenager and began to travel to Rio to train with me.”
visibilityFirst-hand“I had not trained with the Machado brothers in a while, but they were also my students.”
“I got to know Jean Jacques well when he was a teenager and began to travel to Rio to train with me.”
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Chuck NorrisStudent of Jean Jacques MachadoTrained in both linessports_martial_artsBrazilian jiu-jitsu ConfirmedConfirmedJean Jacques Machado was part of the Machado brothers team that taught Norris; Norris helped them open their schoolThe evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkJean Jacques Machado was part of the Machado brothers team that taught Norris; Norris helped them open their school“We have one amazing human being and student, which happens to be Chuck Norris”
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Bruce LeeTeacher of Chuck NorrisBoth lines descend from heresports_martial_artsJeet Kune Do ConfirmedConfirmedNorris met Bruce Lee in 1967 and they trained together twice weekly for 3-4 hours; Lee taught Norris kung fu, Norris taught Lee tae kwon do kicks; documented in multiple sourcesThe evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.(1967–1972)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkNorris met Bruce Lee in 1967 and they trained together twice weekly for 3-4 hours; Lee taught Norris kung fu, Norris taught Lee tae kwon do kicks; documented in multiple sources“Norris met Bruce Lee [...] and the two developed a friendship as well as a training and working relationship.”
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Dan InosantoStudent of Bruce LeeTrained in both linessports_martial_artsJeet Kune Do ConfirmedConfirmedExtensively documented as Bruce Lee's student and assistant instructor at the Los Angeles Jun Fan Gung Fu InstituteThe evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.(1964–1973)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkExtensively documented as Bruce Lee's student and assistant instructor at the Los Angeles Jun Fan Gung Fu Institute“He was one of three people who were appointed to teach at one of the three Jun Fan Gung Fu institutes under Bruce Lee”
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Yorinaga NakamuraTeacher of Dan Inosantosports_martial_artsShooto ProbableProbableInosanto studied Shooto under Yorinaga Nakamura, who taught at the Inosanto Academy from 1991; Nakamura was a student of Shooto founder Satoru SayamaThe evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.(1991)
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2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkInosanto studied Shooto under Yorinaga Nakamura, who taught at the Inosanto Academy from 1991; Nakamura was a student of Shooto founder Satoru Sayama“He trained Shoot wrestling under Yorinaga Nakamura.”
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Satoru SayamaTeacher of Yorinaga Nakamurasports_martial_artsShooto ConfirmedConfirmedExtensively documented; Nakamura enrolled at Satoru Sayama's Tiger Gym in 1984, became full-time staff in 1985, and won the first Shooto tournament in 1986The evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.location_onSuper Tiger Gymbadge (1984–1988)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkExtensively documented; Nakamura enrolled at Satoru Sayama's Tiger Gym in 1984, became full-time staff in 1985, and won the first Shooto tournament in 1986“he enrolled at the Tiger Gym of Satoru Sayama. In November 1985, he became a full-time staff member of Sayama's gym. He trained in Sayama's style of Shootfighting”
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Victor KogaTeacher of Satoru Sayamasports_martial_artsSambo Probablehistory_eduTradition onlyProbableUSA Shooto's own history states it; no record from Koga or an independent source.The evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.Tradition only: every supporting source is the lineage's own account of itself
fact_checkassessed by FSMverified
1 source expand_moreFrederico MuñozResearcher, Martialisfact_checkUSA Shooto's own history states it; no record from Koga or an independent source.“Satoru learned Russian Sambo under the first Sambist from Japan, Victor Koga, who happens to be Japanese and Russian.”
