Bojuka
American self-defense system founded by Tom Schrenk in 1990. The name is an acronym of boxing, jujutsu, and karate.
Quick Facts
United StatesCharacter & Origin
Organisation & Competition
What the style is built from
Editorial rating on a 0–3 scale, based on how much room each area gets in ordinary training.
Catalogs & Databases for Bojuka
About Bojuka
Bojuka is an American self-defense system that Tom Schrenk founded in Ohio in 1990. The name is not a foreign word but an acronym of the three sources the system draws on: boxing, jujutsu, and karate. The starting point is practical. The system builds on simple, gross movements — the ones that stay with a person even under stress, when fine motor skills break down. That also produces a narrow repertoire — instead of a large number of techniques, few things are drilled with a lot of repetition. The goal is framed as handling a threat, not winning a fight, and the path to it has three stages: awareness, avoidance, and only then appropriate force. This order is defining for the system and sets it apart from competitive sports, which start right where bojuka ends. The school opened a second studio in Pennsylvania in 2006. Caution is warranted: most of what is said about the system and about its founder comes from its own website, and we have not been able to find independent verification. According to the same materials, Schrenk studied various fighting styles for more than twenty years before founding Bojuka. Bojuka is one of the lesser-known systems, and we continue to look for independent sources on it.
Similar styles
Selected by overlap in the style profile, not by historical lineage.