Do you think kendo is a martial art, or a sport?
More importantly, can you clearly explain why?
In this article, we will explore what kendo is from a variety of perspectives, including its rules, history, philosophy, and purpose. By the end, you may discover your own answer to the question: What is kendo?
What Is Kendo?
Kendo is one of Japan’s traditional martial arts, developed from the culture and traditions of the Japanese sword. Today, it is widely practiced in schools, dojos, and police organizations throughout Japan, and has spread to many countries around the world.
Kendo also has a competition system and a ranking (dan) system, allowing practitioners to measure the progress of their training. Broadly speaking, kendo consists of two main pillars: Nihon Kendo Kata and Shinai Training.
Nihon Kendo Kata
Nihon Kendo Kata is practiced using wooden swords (bokken) or practice swords in place of real Japanese swords. Performed in pairs, it consists of ten kata designed to teach the techniques, distancing (maai), and mindset based on the principles of Japanese swordsmanship.
Nihon Kendo Kata is also a required component of dan grading examinations and is an essential part of kendo training for those seeking promotion.
Shinai Training
In shinai training, practitioners use a shinai (bamboo sword) instead of a real Japanese sword. By wearing protective armor (men, kote, do, and tare), they can safely strike one another while developing their technique.
Through actual striking practice, practitioners learn not only how to apply the principles studied in Nihon Kendo Kata but also the psychological aspects of facing an opponent. In most contexts, when people refer to “kendo,” they are referring to this form of shinai training.
As shinai training became more widespread, competitions and tournaments also developed, making winning matches one of the goals practitioners can pursue. At the same time, its competitive nature has led some people to question whether kendo is simply a sport focused on winning.
In this article, we will focus on shinai training, the form of kendo that most people are familiar with.
Rules
Match Format
A kendo match is typically contested over five minutes and follows a best-of-three points format. The winner is the first competitor to score two points (ippon). If neither competitor scores two points within the time limit, the competitor with one point wins the match.
If neither competitor has scored when time expires, or if the score is tied, the match proceeds to overtime (encho). The first competitor to score one point in overtime is declared the winner. Match duration and scoring format may vary depending on the tournament.
Ippon
In kendo, simply hitting your opponent with a shinai does not count as a point.
To score an ippon, you must strike one of the four designated target areas: men (head), kote (wrist), do (torso), or tsuki (throat). However, striking one of these targets alone is still not enough.
A valid ippon must be delivered with the accuracy, timing, and power that would, in principle, be effective if a real Japanese sword were being used. A light or careless touch is therefore not considered a valid strike.
For this reason, kendo is not about simply making contact with your opponent. This concept is expressed through one of kendo’s most important principles: Ki-Ken-Tai-Itchi (the unity of spirit, sword, and body).
What Is Ki-Ken-Tai-Itchi?
Ki-Ken-Tai-Itchi refers to a strike in which spirit, sword, and body become one. In kendo, a strike is recognized as ippon only when these three elements come together.
Ki
Ki refers to the resolve and fighting spirit directed toward the opponent. If we imagine a real sword fight, taking one step forward is a decision that could determine life or death. If hesitation appears after moving forward, it could be fatal.
For this reason, a strike requires unwavering resolve and spirit. This resolve and spirit are expressed through the voice. That is why practitioners call out the target area, such as “Men,” “Kote,” “Do,” or “Tsuki,” at the moment of the strike.
Ken
Ken refers to striking the target area correctly with the shinai. The four target areas — men, kote, do, and tsuki — must be struck accurately.
It is not enough for the shinai to simply make contact. Since kendo is based on the handling of the Japanese sword, the strike must also be made with proper awareness of the blade angle.
Tai
Tai refers to striking not only with the hands, but with the whole body. A strike made only with the hands does not have enough power to become a valid strike.
By using the entire body and putting body weight into the strike, the movement comes closer to a strike that can be recognized as ippon.
What Is Zanshin?
After a strike in which ki, ken, and tai come together, zanshin is still required. Zanshin refers to the state of mind and body in which you remain focused and prepared for your opponent even after striking.
If we imagine a real sword fight, even after cutting the opponent, they may still have enough strength to counterattack. For that reason, you must not lose focus the moment you strike.
After striking, you must keep your eyes on your opponent, maintain an appropriate distance, and be ready for the next movement. Zanshin means maintaining focus until the very end, without giving your opponent a chance to counterattack.
In kendo, a strike is recognized as ippon only when zanshin is shown in addition to ki-ken-tai-itchi. Conversely, even if the strike itself is accurate, it will not be considered ippon without zanshin.
Fouls and Prohibited Actions
Kendo has various fouls and prohibited actions designed to ensure fairness, safety, and respect. Common fouls include stepping outside the court, dropping the shinai, grabbing your opponent’s shinai, or holding the blade portion of your own shinai.
Each foul results in one penalty being recorded. After two fouls, the opponent is awarded one ippon. Other fouls include intentionally wasting time and making unfair or dangerous attacks.
Unsportsmanlike Conduct
Disrespectful behavior toward the referees or your opponent is considered a serious violation in kendo.
A competitor who engages in such conduct may be disqualified, the opponent will be awarded two ippon, and the offender will be removed from the match.
How Do You Score an Ippon?
To score an ippon, you simply need to strike one of your opponent’s target areas before they strike yours. In reality, however, it is far from that simple.
Your opponent’s shinai is positioned on the center line, aimed directly at your throat. If you attack without preparation, your opponent’s sword would reach you before your strike lands.
Moving forward to attack also means entering your opponent’s striking range. Furthermore, if you make the first move carelessly, your opponent may use that movement as an opportunity to strike you.
For this reason, speed and strength alone are not enough to score an ippon in kendo. Instead, you must break your opponent’s balance, create an opening, and put yourself in a favorable position before attacking.
This battle of strategy and psychology is one of the greatest attractions of kendo.
At the same time, it is also one of the hardest aspects to explain with words alone. It is something that can only be truly understood by crossing swords with another person.
Is Kendo a Martial Art or a Sport?
Kendo Is a Martial Art
Kendo is, without question, a martial art.
The All Japan Kendo Federation officially recognizes kendo as a Japanese martial art. It is also included in the definition of budo established by the Japanese Budo Association, and the Ministry of Education, Culture, Sports, Science and Technology classifies kendo as one of Japan’s martial arts in the national school curriculum.
In other words, from an official and institutional perspective in Japan, there is no debate that kendo is a martial art.
Is Kendo a Sport?
So, is kendo also a sport?
The answer depends on how you define the word “sport.”
As a matter of fact, kendo is a competitive activity in which two opponents compete to determine a winner. From that perspective, it is perfectly reasonable to regard kendo as a sport.
At the same time, many practitioners feel that calling kendo only a sport does not fully capture its nature. This is because, although matches are an important part of kendo, winning is not the ultimate purpose of training.
So, what is the true purpose of training?
To answer that question, we must first understand what budo really is.
What Is Budo?
The Japanese Budo Association defines budo as a path of human development through the practice of martial techniques systematized in Japan, rooted in the traditions of bushido, through which practitioners refine their character and cultivate etiquette.
To put it simply, budo is a path of human development. In other words, the purpose of budo is not simply to win, but to grow as a person.
Of course, winning matches and achieving higher ranks are both important goals. However, they are not the final destination. They are also means of pursuing the greater purpose of human development.
Conclusion
Kendo is clearly a martial art. At the same time, because it is a competitive activity in which people compete for victory, it can also be understood as a sport.
However, one of kendo’s defining characteristics is that its purpose is not simply to win, but to pursue human development through training.
This idea is reflected in the fact that actions such as victory poses that boast about winning are not accepted, and that etiquette and respect for the opponent are deeply emphasized.
In this sense, kendo is a martial art that some people may also interpret as a sport.
If, in the future, victory alone becomes more important than the original budo purpose of human development, kendo may gradually lose some of its martial art qualities, and its sporting side may become more prominent.
The History of Kendo
So, how did modern kendo come into existence?
Rather than focusing on exact dates and historical terminology, this section provides a simple overview of how modern kendo developed into the martial art we know today. For a more detailed history, please refer to the official publications of the All Japan Kendo Federation.
The Birth of the Japanese Sword
The history of kendo can be traced back approximately 1,000 years to the birth of the Japanese sword (katana).
The Japanese sword is characterized by its curved blade and single cutting edge. These unique features gave rise to a distinctly Japanese style of swordsmanship.
Even today, the techniques of kendo are based on the structure and principles of the Japanese sword. The shinai (bamboo sword) and bokken (wooden sword) used in kendo are also designed with the Japanese sword in mind.
Katsujinken
The Japanese sword was originally a weapon for battle.
However, when Japan entered the Edo period, a long era of peace began. During this time, swordsmanship was no longer only about fighting technique. Ideas also developed around how a samurai should live as a person who carried a sword.
One of the representative ideas that emerged from this tradition is katsujinken. Katsujinken means “the sword that gives life.” It is the idea that the sword is not only for cutting down an opponent, but also for protecting and giving life.
This way of thinking is deeply connected to bushido, which continued to ask what it means to live as a samurai.
From Kenjutsu to Kendo
In the Meiji period, the samurai class was abolished, and people were no longer allowed to wear swords in daily life. As a result, kenjutsu gradually lost its role as a practical fighting technique.
At the same time, a movement arose to preserve Japanese martial techniques and the spirit of the samurai for future generations. Within this historical flow, the idea of kendo began to take shape, based on kenjutsu while placing greater emphasis on human development.
This flow is connected to the modern definition of budo as “martial techniques systematized in Japan, rooted in the traditions of bushido.”
The Value of Kendo
What is the value of kendo?
Through kendo, which has been influenced by Confucianism, Buddhism, Shinto, and other traditions, we can learn many things: etiquette, how to interact with seniors and teachers, perseverance, respect for others, gratitude, and much more.
However, the value of kendo is not fixed as one single answer. What a person learns from kendo depends on that person.
In that sense, it is the same as other sports. There are things that can only be learned through other sports, and there are also things that can only be learned through kendo.
So, what makes kendo significantly different from other sports?
Perhaps it is that the purpose of training is human development, and that this idea of human development has been explored by many predecessors throughout a long history.
Then, what exactly is human development?
What Is Human Development?
Human development, as the name suggests, means growing as a human being.
But what does it mean to be a good person?
Is it someone who is kind? Someone who never gives up? Someone who never lies?
If so, why can we say with certainty that these qualities alone define a good person?
What about someone who chose not to be kind in order to protect a loved one? Someone who decided to give up on something for a greater purpose? Someone who told a lie to save another person? Are these people not good?
Perhaps the first step in thinking about human development is to ask yourself: What does it mean, to you, to be a good person?
Is there a single, definitive answer to that question?
For centuries, samurai and swordsmen wrestled with the same question. Their search eventually became closely connected with bushido—the ongoing pursuit of what it means to live as a samurai.
Perhaps kendo is a martial art that invites us to reflect on one timeless question:
What does it truly mean to be a good human being?
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