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16th Annual OKO Gathering

Saturday October 12, 2024

New Vision Church, 220 Sunset Ave. Harrison, Ohio 45030

Click OKO Events page for details.

(Please use our Donation button for your tickets)

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OKO Curriculum Videos

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The Ordonez Kajukenbo Ohana (OKO) was formed to perpetuate the art of Kajukenbo self-defense through honoring the legacy of Kajukenbo Co-Founder Uncle Frank Ordonez. 

The OKO was founded on February 15, 2008 and is comprised of those who have been promoted by Uncle Frank but is open to all ranks and styles. 

The OKO provides instruction, training, and promotional support to its members. The OKO holds annual seminars and tournaments commemorating Uncle Frank’s Birthday. 

Kajukenbo Co-Founder "Uncle" Frank Ordonez

...was born February 15, 1927 in Puunene, Maui, HI. During his teens he studied Jujitsu from Sam Luke Sr. an instructor from the Kodenkan Jujitsu of Prof. Okasaki in Honolulu, HI. This is where he met Joe Mitsuno Holck. After witnessing the bombing of Pearl Harbor from his home, Uncle Frank enlisted in the U.S. Army. While stationed at Ft Shafter in Honolulu, Uncle Frank was on the Army Boxing team with Peter Choo, a Tang Soo Do practitioner, under the training of Thomas Toyama. Uncle Frank invited Peter Choo to cross train with him and Joe Holck in Jujitsu and with Thomas Young in Kenpo. This laid the foundation for Kajukenbo. In 1947, while living in Halawa Housing, Uncle Frank invited his child hood friend and God Brother Adriano Emperado, a student of Kenpo Prof. Chow, to come train with Joe Holck and Peter Choo in the abandoned Barracks adjacent to his home. Peter Choo invited his friend George Chang, a Kung Fu practitioner, to come and train as well. These 5 Kajukenbo Founders called themselves the Black Belt Society

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Great Grand Master Jason Groff

Great Grand Master (GGM) Jason Groff is a 10th Degree Red/Gold Belt in Kajukenbo and the Successor to the Ordonez Kajukenbo Ohana. GGM Groff has over 50 years’ experience in martial arts, a U.S. Army Veteran, and retired Law Enforcement Officer. GGM Groff is the Chairman of the Board of the Ordonez Kajukenbo Ohana.



The Ordonez Kajukenbo Ohana (OKO) was formed in 2008 to highlight the skills and diversity of the various martial arts styles. The OKO views the martial arts as one large family tree, with each branch representing the arts that contribute to Kajukenbo - Karate, Judo/Jujutsu, Kenpo, Chinese Boxing and Western Boxing. Like a tree, the martial arts are a living, breathing system of self -defense that will continue to evolve.

The objectives of the OKO are the expansion of interest in the arts of Karate, Judo/Jujutsu, Kenpo, Chinese Boxing and Western Boxing, the establishment of communication, friendship, understanding and harmony among member chapters, the development of the minds, spirits and bodies of members, and the promotion of global understanding and personal growth. In keeping with the spirit of Kajukenbo, charter schools retain complete autonomy over their curriculum.

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