Oji Waza

Genus

応じ技

Traditional

Translation: Responding Techniques

Overview

Ōji Waza (counter techniques) are defensive-offensive tactics in kendō where the defender responds to the opponent's attack with a parry, block, or evasion followed by an immediate counter-strike, including nuki-waza (avoiding and striking), suriage-waza (sliding parry and striking), and kaeshi-waza (block-and-return strike). ^[1] Ōji waza embody the principle of go-no-sen (seizing the initiative after the opponent moves), requiring superior timing, reading ability, and calm under pressure. ^[1],[2] High-level kendō practitioners often favour ōji-waza because a successful counter demonstrates mastery of distance, timing, and composure. ^[2],[3]

Also known as

Response Technique^[1]Counter Technique — Kendo^[2]Reactive WazaJP^[3]

Used in

Kendo

History & Origin

Ōji waza derive from the kenjutsu principle of go-no-sen, where the defender draws out the opponent's committed attack and exploits the resulting opening. ^[1] This tactical approach was central to many koryū schools and has been systematised in modern kendō pedagogy alongside shikake waza. ^[2],[3]

Effectiveness

Oji waza (responsive techniques) are counter-attacking actions in kendo, including nuki-waza (evading and cutting), suriage-waza (sliding the shinai up against the opponent's attack), kaeshi-waza (blocking and returning), and uchiotoshi-waza (striking down the opponent's shinai). ^[1] Oji waza require superior timing and reading of the opponent's intentions, and are generally associated with more experienced and higher-ranked kendoka. ^[2]

Lineage

Oji waza (counter techniques) in kendo include nuki waza (evasion), suriage waza (deflection), and kaeshi waza (return strikes), responding to the opponent's attack. ^[1]

Competition Record

Oji waza are valued highly in kendo competition as they demonstrate superior reading of the opponent. Kaeshi-dō (counter to the torso) is one of the most spectacular scoring techniques at World Championship level. ^[1]

Images

No images yet for this technique.

Biomechanical Mechanism

Primary Action — Cutting, thrusting, or striking with a bladed weapon — edge alignment and trajectory determine cutting effectiveness

Joints Involved — Wrists (edge alignment and rotation), elbows (extension for thrusts, chambering for cuts), shoulders (arc of the cut), hips (power generation)

Force Vector — Varies — downward diagonal cut (kesa-giri), horizontal cut (yoko-giri), thrust (tsuki), or rising cut (kiri-age)

Weapon Mechanic — Edge alignment (hasuji) is critical — the blade must travel along its cutting plane for effective cuts

Position & Entry

From ready stance (chudan-no-kamae or equivalent) — Assume guard position, establish distance (ma-ai), execute the cut or thrust when an opening appears

From engagement distance — Use footwork to close to striking range, execute the technique with proper edge alignment (hasuji)

As counter — Wait for the opponent's attack, deflect or avoid, and counter-cut to the exposed target

Variants

Standard cut — primary cutting angle from the ready stance

Thrust (tsuki) — straight thrust targeting the throat, chest, or face

Rising cut (kiri-age) — upward diagonal cut from low to high

Diagonal cut (kesa-giri) — downward diagonal cut following the kimono line

Videos

Avi Rokah

Uchi waza _ striking techniques

Oji Waza·Avi Rokah

Uchi Waza - striking techniques are quick sharp sock techniques, which are flexible and can be used from many angles. 0:…

Kendo Tips

Shikake vs Oji Waza: Kendo tips to stop getting hit

Oji Waza·Kendo Tips

#kendo #剣道 #samurai When doing Oji waza in kendo many people become reactive and this is why they often get hit. Here …

Urtnasan Erdenebileg

Harai waza

Oji Waza·Urtnasan Erdenebileg

1 / 2

3 videos

What Instructors Say

Oji waza (応じ技) represents the defensive counter-attacking category of kendo technique, contrasting with shikake waza (initiatory attacks). According to Kendo Tips, successful oji waza requires foundational mastery of shikake waza, not because shikake is simpler but because it teaches practitioners to recognize openings, understand opponent reactions, and develop proper timing and distance judgment. The core principle of oji waza execution is maintaining constant forward pressure toward the opponent rather than passively waiting for their attack; this pressure allows the practitioner to anticipate the opponent's movement decision and counter at the precise moment they commit. Kendo Tips emphasizes that practitioners should not retreat or reduce pressure, as this invites stronger attacks and negates the timing advantage. The transition from shikake to oji waza involves three progressive drill stages: reading opponent movement while in engaged kamae, stepping forward as the opponent approaches, and finally responding to genuine attacks with proper distance, target selection, and abbreviated footwork. Common oji waza applications include menkaeshido (counter to overhead strikes), where waiting passively results in being struck, whereas maintaining pressure enables successful anticipation and response. Avi Rokah's treatment of striking mechanics (uchi waza) provides complementary insight into the sharp, quick contact essential for effective oji waza counters, emphasizing elbow-centered snap action, brief momentum transfer, and variable angles of attack. The instructors collectively stress that oji waza mastery depends on psychological and mechanical awareness: knowing when pressure will provoke a reaction, and executing counters with precise timing rather than speed alone.

Synthesized from 3 instructors

Kendo Tips — Shikake vs Oji Waza: Kendo tips to stop getting hit: Comprehensive framework distinguishing oji waza from shikake waza; emphasis on maintaining forward pressure, timing anticipation, and progressive drill methodology; practical example of menkaeshido application and distance/timing variables.
Avi Rokah — Uchi waza _ striking techniques: Detailed mechanics of snap striking (kime strike vs. stamp strike), elbow-centered action, brief momentum transfer, and sharp contact principles applicable to oji waza counter-strike execution.
Urtnasan Erdenebileg — Harai waza: No intelligible English-language content provided; transcript consists entirely of foreign language speech.

Learn This Technique

No instructional courses yet for this technique.

Ratings

Danger Rating

Risk of injury to the person this technique is applied to

Extreme9/10

Edged weapons cause fatal lacerations; historical battlefield mortality rates >30% (Amberger 1999)

Difficulty

Skill level needed to execute this technique reliably

Advanced

Competition Legality

Whether this technique is allowed under major competition rule sets

— datotsu-bu

FIK Kendo Competition RulesPDF

Training Notes

✓Oji waza (counter techniques) are defensive-offensive kendo techniques that exploit the opponent's attacking commitment to create scoring opportunities (All Japan Kendo Federation, Japanese-English Dictionary of Kendo, 2011)

✓Oji waza includes: nuki waza (evasion then strike), suriage waza (deflecting the opponent's sword upward then striking), kaeshi waza (parrying and counter-cutting), and uchiotoshi waza (striking down the opponent's sword)

✓Oji waza embodies the principle of 'go no sen' (after the initiative): allowing the opponent to attack first, then exploiting their commitment

✓Suriage-men (deflect the opponent's cut upward, then strike men) is a fundamental oji waza: the upward sweep redirects the attack while positioning the sword for the counter

✓Kaeshi-do (parry the opponent's men cut, then counter with do) is the most common oji waza in competition: the parry creates the opening for the body cut

✓Oji waza requires patience and courage: the practitioner must allow the opponent to attack, remaining calm under pressure

✓The highest expression of oji waza is ai-uchi (mutual striking) where the counter arrives at exactly the same moment as the attack — but with superior technique

Common Mistakes

!Attempting oji waza without understanding the opponent's attack pattern — the counter must match the specific attack

!Countering too early (before the opponent commits) — the opponent will change their attack if the counter is premature

!Countering too late (after the attack has landed) — the timing window for oji waza is narrow; delayed responses fail

!Using oji waza passively — oji waza requires active reading and decisive response, not passive waiting

!Not training the specific parry-counter combinations — each oji waza technique must be drilled separately

!Over-relying on oji waza without developing shikake — a fighter who only counters is predictable

!Not developing the courage to receive the attack — oji waza requires standing in the face of the attack without flinching

Related Techniques

Guard Position — the ready stance from which this technique is initiated Parry — defensive blade/weapon action that counters this attack

Counter Techniques

Guard Position — return to a defensive ready stance Distance Management — control the measure to avoid being in range Counter-Attack — strike during the opponent's recovery or between movements

Setup Chain

1Ready Position — assume the guard stance appropriate for the weapon

2Distance Control — manage spacing relative to the opponent

3Execute Technique — perform the offensive or defensive action with correct form

4Return to Guard — recover to a defensive ready position

Sources & References

Primary Source

The Book of Five Rings (Miyamoto Musashi, 1645)

1BookThe Book of Five Rings (Musashi, 1645)

Alias sources — [1] Japanese Swordsmanship (Warner & Draeger, 1982) [2] Japanese Swordsmanship (Warner & Draeger, 1982) [3] Japanese Swordsmanship (Warner & Draeger, 1982)

2BookThe Art of Fencing (Barbasetti, 1932)

Effectiveness sources — [1] All Japan Kendo Federation, Kendo Official Manual (AJKF) [2] Warner, G. & Draeger, D., Japanese Swordsmanship: Technique and Practice (Weatherhill, 1982)

3OtherJapanese Martial Arts Standard Terminology (武道用語)

Established Japanese martial arts naming convention — native Japanese term (和語/漢語)

4CitationThe Book of Five Rings (Musashi, 1645)

Alias sources — [1] Japanese Swordsmanship (Warner & Draeger, 1982) [2] Japanese Swordsmanship (Warner & Draeger, 1982) [3] Japanese Swordsmanship (Warner & Draeger, 1982)

5CitationThe Art of Fencing (Barbasetti, 1932)

Effectiveness sources — [1] All Japan Kendo Federation, Kendo Official Manual (AJKF) [2] Warner, G. & Draeger, D., Japanese Swordsmanship: Technique and Practice (Weatherhill, 1982)

Community

Athletics

Requires

wrist control for edge alignment, grip endurance, footwork precision

Favours

quick wrists, strong forearms, good posture

Key muscles

forearm extensors/flexors, deltoids, core, calves

Frequently Asked Questions

How do I know when to execute Oji Waza if I'm supposed to wait for my opponent's attack?

You want to keep constant pressure forward toward your opponent so you can anticipate when they're about to move, then strike at the moment they commit to their attack—not before and not after. According to Kendo Tips, the key is catching them at the decision point when they've committed to moving, which allows you to counter effectively.

What's the relationship between Shikake Waza and Oji Waza?

Shikake Waza and Oji Waza are very similar, and the skills you develop in Shikake Waza—especially maintaining forward pressure and understanding timing—are 100% transferable to Oji Waza. The pressure and anticipation skills from initiating attacks directly apply to countering attacks.

Why is maintaining pressure so important in Oji Waza?

Maintaining forward pressure allows you to control the engagement and anticipate your opponent's movements rather than reacting to their pressure. Kendo Tips emphasizes that you want to be the one initiating the pressure, not waiting passively for your opponent to attack out of desperation.

How does the Oji Waza work?

Ōji Waza (counter techniques) are defensive-offensive tactics in kendō where the defender responds to the opponent's attack with a parry, block, or evasion followed by an immediate counter-strike, including nuki-waza (avoiding and striking), suriage-waza (sliding parry and striking), and kaeshi-waza (block-and-return strike). Ōji waza embody the principle of go-no-sen (seizing the initiative after the opponent moves), requiring superior timing, reading ability, and calm under pressure.

Where does the Oji Waza come from?

Ōji waza derive from the kenjutsu principle of go-no-sen, where the defender draws out the opponent's committed attack and exploits the resulting opening. This tactical approach was central to many koryū schools and has been systematised in modern kendō pedagogy alongside shikake waza.

Is the Oji Waza legal in competition?

FIK Kendo: legal — Legal, valid strike requires correct form (datotsu-bu), spirit (kiai), and fo…

How dangerous is the Oji Waza?

Danger rating 9/10. Extreme — edged weapons cause fatal lacerations; historical battlefield mortality rates >30% (Amberger 1999)

How do I set up the Oji Waza?

The standard setup chain: Ready Position → Distance Control → Execute Technique → Return to Guard.

How do I defend against the Oji Waza?

Standard counters include: Guard Position — return to a defensive ready stance / Distance Management — control the measure to avoid being in range / Counter-Attack — strike during the opponent's recovery or between movements.

What are the variants of the Oji Waza?

Common variants: Standard cut (primary cutting angle from the ready stance); Thrust (tsuki) (straight thrust targeting the throat, chest, or face); Rising cut (kiri-age) (upward diagonal cut from low to high); Diagonal cut (kesa-giri) (downward diagonal cut following the kimono line).

How effective is the Oji Waza in competition?

What are common mistakes when doing the Oji Waza?

Top errors to watch for: Attempting oji waza without understanding the opponent's attack pattern — the counter must match the specific attack / Countering too early (before the opponent commits) — the opponent will change their attack if the counter is premature / Countering too late (after the attack has landed) — the timing window for oji waza is narrow; delayed responses fail / Using oji waza passively — oji waza requires active reading and decisive response, not passive waiting.

What are other names for the Oji Waza?

The Oji Waza is also known as Response Technique, Counter Technique — Kendo, Reactive Waza.

oji waza weapon sword long blade japanese sword kenjutsu kendo kendo waza kendo response technique counter technique kendo reactive waza