Oyama attended Takushoku University in Tokyo and was accepted as a student at the dojo of Gichin Funakoshi. He trained with Funakoshi for two years, then studied Gōjū-ryū karate for several years with “So-nei Chu” (소네이쥬, 1907–?), a senior student of the system’s founder, Chojun Miyagi, and was eventually graded to 7th Dan in the system by Gogen Yamaguchi who at that time was the head of Goju-ryu in mainland Japan.

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Korea had been officially annexed by Japan since 1910. During World War II (1939–1945) there was much unrest throughout Korea. At this time, Mr. So suggested that Oyama retreat to a lone mountain for solace to train his mind and body. He set out to spend three years on Mt. Minobu in Yamanashi Prefecture, Japan. Oyama built a shack on the side of the mountain. One of his students named Yashiro accompanied him, but after the rigors of this isolated training, with no modern conveniences, the student snuck away one night, and left Oyama alone. With only monthly visits from a friend in the town of Tateyama in Chiba Prefecture, the loneliness and harsh training became grueling. Oyama began to doubt his decision, so he sent a letter to the man who suggested the retreat. Mr. So replied with encouragement to remain, and suggested that he shave off one eyebrow so that he would not be tempted to come out of the mountain and let anyone see him that way. Oyama remained on the mountain for fourteen months, and returned to Tokyo a much stronger and more fierce Karateka.

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Oyama gave great credit to reading “The Book of Five Rings” by Miyamoto Musashi – a famous Japanese swordsman, to change his life completely. He recounts this book as being his only reading material during his mountain training years.

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He was forced to leave his mountain retreat after his sponsor had stopped supporting him. Months later, after he had won the Karate Section of Japanese National Martial Arts Championships, he was distraught that he had not reached his original goal to train in the mountains for three years, so he went into solitude again, this time on Mt. Kiyosumi in Chiba Prefecture, Japan and he trained there for 18 months.
 

Founds Kyokushin

In 1953 Oyama opened his own karate dojo, named Oyama Dojo, in Tokyo but continued to travel around Japan and the world giving martial arts demonstrations, including the fighting and killing of live bulls with his bare hands. His dojo was first located outside in an empty lot but eventually moved into a ballet school in 1956. Oyama’s own curriculum soon developed a reputation as a tough, intense, hard hitting but practical style, which was finally named Kyokushin, which means ‘the search for the ultimate truth,’ in a ceremony 1957. He also developed a reputation for being ‘rough’ with his students, often injuring them during training sessions. As the reputation of the dojo grew students were attracted to come to train there from inside and outside Japan and the number of students grew. Many of the eventual senior leaders of today’s various Kyokushin based organizations began training in the style during this time. In 1964 Oyama moved the dojo into the building that would from then on serve as the Kyokushin home dojo and world headquarters. In connection with this he also formally founded the ‘International Karate Organization Kyokushin kaikan’ (commonly abbreviated to IKO or IKOK) to organize the many schools that were by then teaching the kyokushin style. In the same year, his dojo received a challenge from Muay Thai (Thai Boxing) practitioners. Oyama, believing that no other style was comparable to his, accepted the challenge and sent three students (Kenji Kurosaki, Tadashi Nakamura, Noboru Ōsawa) to Thailand who won 2 of the 3 fights, thus redeeming the reputation of his karate style.

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After formally establishing Kyokushin-kai, Oyama directed the organization through a period of expansion. Oyama and his staff of hand-picked instructors displayed great ability in marketing the style and gaining new members. Oyama would choose an instructor to open a dojo in another town or city in Japan. The instructor would move to that town and usually demonstrate his karate skills in public places, such as at the civic gymnasium, the local police gym (where many judo students would practice), a local park, or conduct martial arts demonstrations at local festivals or school events. In this way, the instructor would soon gain a few students for his new dojo. After that, word of mouth would spread through the local area until the dojo had a dedicated core of students. Oyama also sent instructors to other countries such as the United States, Netherlands, England, Australia and Brazil to spread Kyokushin in the same way. Oyama also promoted Kyokushin by holding The All-Japan Full Contact Karate Open Championships every year and World Full Contact Karate Open Championships once every four years in which anyone could enter from any style.

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As a side note: Oyama also took up Judo so that he would have an understanding of the art’s ground techniques. Masahiko Kimura Judo Legend then introduced Oyama to the Sone Dojo in Nakano, Tokyo, where he trained regularly for four years, eventually gaining his 4th Dan in this discipline.

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Public demonstrations

Oyama tested himself in a kumite, a progression of fights, each lasting two minutes, and each after the featured participant wins. Oyama devised the 100-man kumite which he went on to complete three times in a row over the course of three days. 

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He was also known for fighting bulls bare-handed. Oyama had many matches with professional wrestlers during his travels through the United States. Oyama said in the 1958 edition of his book What Is Karate that he had just three matches with professional wrestlers plus thirty exhibitions and nine television appearances.

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Later years

Later in his life, Oyama suffered from osteoarthritis. Despite his illness, he never gave up training. He was holding demonstrations of his karate, breaking objects.

 

Oyama wrote over 80 books in Japanese and some were translated to other foreign languages.

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Final years

Before dying, Oyama built his Tokyo-based International Karate Organization, Kyokushinkai, into one of the world’s foremost martial arts associations, with branches in more than 120 countries boasting over 10 million registered members. In Japan, books were written by and about him, feature-length films splashed his colorful life across the big screen, and comic books recounted his many adventures.

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Oyama died at the age of 70, on April 26, 1994, of lung cancer. He was a non-smoker. His widow Chiyako Oyama, made a trust foundation to honor his life-long work.

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