Kajukenbo
A mixed martial art from Hawaii founded in 1947.
Kajukenbo is a mixed martial art developed in the late 1940s and founded in 1947 in the Palama Settlement on Oahu, Territory of Hawaii. It was created by five martial artists from varying backgrounds, initially known as the 'Black Belt Society', who sought to develop a practical and effective street self-defense system. The name Kajukenbo combines elements from karate, judo/jujutsu, kenpo, and Chinese boxing.
- field
- Mixed martial art
- nationality
- Hawaiian (Territory of Hawaii)
- known_for
- Blend of striking, kicking, throwing, takedowns, joint locks, and weapon disarmament; emphasis on real-world self-defense
- founded
- 1947
- founders
- Adriano D. Emperado, Joseph Holck, Peter Young Yil Choo, Frank F. Ordonez, Clarence Chang
Lore & Background
Kajukenbo was developed in the violent Palama Settlement area of Oahu. The five founding members—Adriano D. Emperado, Joseph Holck, Peter Young Yil Choo, Frank F. Ordonez, and Clarence Chang—each brought expertise from different martial arts, including Kosho Shorei-Ryū Kenpo, Kodokan Judo, Tang Soo Do, Sekeino Jujutsu, and Sil-Lum Pai Gongfu. They tested techniques against each other and on the street, keeping only those that worked consistently. After the Korean War broke out, four founders left for military service, leaving Adriano Emperado to continue teaching, assisted by his brother Joseph. Following Joseph Emperado's death, the institute fell into chaos, with 14 black belt instructors leaving, but classes eventually restarted under Joe Delacruz and Adriano Emperado. In 1958, the teachings moved to the Pacific Coast of the United States when Aleju Reyes opened the first school outside Hawaii at Travis Air Force Base in California.
Reader's Guide
Kajukenbo's significance lies in its early synthesis of multiple martial arts into a practical, street-oriented system, predating the modern mixed martial arts movement. Its founders' pragmatic approach—discarding techniques that failed in real combat—established a philosophy of continuous evolution and effectiveness. The art spread from Hawaii to the U.S. mainland through students like Charles Gaylord, Tony Ramos, and Aleju Reyes, who opened schools in California and formed the Kajukenbo Association of America in 1967. Today, Kajukenbo is practiced worldwide in various branches, with an emphasis on realism and practicality. Unlike many traditional martial arts, students are encouraged to develop their own 'expression' after mastering the system. The curriculum includes counterattacks against punches, knives, sticks, firearms, and grappling, and some schools teach 26 fundamental forms called 'Pinyans' and 'Concentrations'. Training focuses on cardio conditioning and functional strength, often using sandbags or boxing gloves.
Did You Know?
- The name Kajukenbo is a combination of KA (karate/Tang Soo Do), JU (judo/jujutsu), KEN (kenpo), and BO (Chinese boxing).
- The founders tested techniques by seeing if they worked consistently on the street or against one another; if not, they were discarded.
- After the death of Joseph Emperado, the Kajukenbo Institute was inoperable for three months before classes restarted.
- In 1967, Charles Gaylord, Aleju Reyes, Joe Halbuna, Tony Ramos, and Al Dacascos formed the Kajukenbo Association of America.
Frequently Asked Questions
What is Kajukenbo?
Kajukenbo is a hybrid martial art that fuses techniques from multiple disciplines into a single, practical self-defense system. Rather than tracing back to one lineage, it was purpose-built as a street-fighting blend for real-world encounters.
Who founded Kajukenbo?
Five martial artists known collectively as the Black Belt Society—Adriano D. Emperado, Joseph Holck, Peter Young Yil Choo, Frank F. Ordonez, and Clarence Chang—developed the system together. Each came from a different martial-arts background, and they pooled their knowledge to create a unified defensive approach.
What does the name Kajukenbo actually mean?
The name is a syllable mashup pulled from karate, judo (or jujutsu), kenpo, and Chinese boxing, taking one or two letters from each source art. It essentially spells out the four pillars the system was constructed from.
What techniques does Kajukenbo emphasize?
Practitioners train in striking, kicking, throws, takedowns, joint locks, and weapon-disarmament drills. The selection of techniques is driven by practicality against an untrained attacker rather than by sport-scoring criteria.
Where and when was Kajukenbo created?
It was founded in 1947 in the Palama Settlement on Oahu, then part of the Territory of Hawaii. The founders were responding to the day-to-day realities of urban street life in a small Pacific community, which shaped the art's no-nonsense defensive focus.
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