About Judo

Judo was founded in 1882 by Jigoro Kano, a Japanese educator who studied multiple schools of traditional Japanese jiu jitsu, including Tenjin Shinyo-ryu and Kito-ryu, and combined the most effective techniques into a unified curriculum he called Kodokan Judo.

The name itself tells the story: Ju means “adaptable” or “flexible,” and Do means “way” or “path.” Kano's insight was that the battlefield techniques of classical jiu jitsu could be reorganized into a safe, systematic practice method, one that allowed full-power training without the risk of serious injury. He removed the most dangerous striking and weapon techniques, kept the throws, pins, chokes, and joint locks, and built a teaching system around two core principles:

• 1.Seiryoku Zenyo (Maximum Efficiency, Minimum Effort): Use technique and leverage, not brute force, to overcome a larger or stronger opponent.
• 2.Jita Kyoei (Mutual Welfare and Benefit): Training partners help each other improve. You cannot progress alone.

Kano was not just a martial artist; he was an educator and reformer. He served as the first Asian member of the International Olympic Committee and spent decades promoting judo as a vehicle for physical education and character development. His system proved so effective that it was adopted as part of the Japanese public school curriculum and eventually spread worldwide.

Before Kano, martial arts had no standardized ranking system. In the 1880s, he introduced the kyu/dan belt system to track student progress: white belts for beginners, black belts for those who had mastered the fundamentals. Intermediate colored belts were added later to provide more visible milestones.

This innovation was so practical that it was adopted by nearly every martial art that followed: karate, taekwondo, Brazilian jiu jitsu, aikido, and dozens more. Every colored belt in every martial arts school in the world traces back to Kano's original system. When you see a black belt in any discipline, you are looking at a direct descendant of judo.

Judo became the first martial art to be included in the Olympic Games, debuting as a demonstration sport at the 1964 Tokyo Olympics and becoming a permanent fixture in 1972. Today, judo is practiced by over 40 million people in more than 200 countries, making it one of the most widely practiced martial arts on Earth.

The International Judo Federation (IJF) governs the sport worldwide, maintaining the technical standards and competitive rules that keep judo both safe and exciting. Modern competition judo rewards explosive throws with ippon, a single, decisive technique that ends the match instantly, preserving Kano's original emphasis on decisive action over grinding attrition.

At Kaizen, we draw from this rich competitive tradition. Our head coach, Angela Woosley, is a National Judo Champion and multiple world team member who brings elite-level knowledge to our program.