First World Open Karate Tournament The First World Open Karate Tournament was held on the 1st and 2nd of November, 1975 in Tokyo under the auspices of the International Karate Organization, Kyokushinkaikan. This tournament, long desired and long planned by Kancho Oyama, was organized primarily to give Karate-Ka around the world the opportunity to meet … Continue reading FIRST WORLD OPEN TOURNAMENT – 1975