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As per Wikipedia:WikiProject_Martial_arts/Notability#Arts_and_styles

1. Olympic participant or world champion of a significant international organization; - more than a few dozen competitors,
2. Repeated medalist (as an adult black belt, i.e. 1st dan equivalent or higher rank) in another significant event; - (e.g. competitors from multiple nations or significant national tournament, not an internal school champion)

He competed in the 1964 Olympics. CrazyAces489 ( talk) 09:12, 13 November 2014 (UTC) reply