Kimura

The Kimura is one of the most versatile and high-percentage shoulder locks in Brazilian Jiu-Jitsu, named after judoka Masahiko Kimura who famously used it to defeat Helio Gracie in 1951. This figure-four grip shoulder lock attacks the opponent’s arm by rotating it behind their back, creating severe pressure on the shoulder joint, rotator cuff muscles, and shoulder capsule. What makes the Kimura exceptional is its applicability from virtually every position in grappling - top, bottom, standing, or transitional - making it a fundamental technique that spans all belt levels. The Kimura serves dual purposes: as a direct finishing submission and as a powerful control position that opens numerous sweeps, transitions, and secondary attacks. The grip itself creates such dominant control that even without completing the submission, practitioners can use it to manipulate opponents, take the back, or advance position. The mechanical advantage generated by the figure-four grip allows smaller practitioners to control and submit larger opponents through proper technique rather than strength alone.

Category: Joint Lock Type: Shoulder Lock Target Area: Shoulder joint, rotator cuff, and shoulder capsule Starting Position: Side Control Success Rate: 62%

Safety Guide

Injury Risks:

Injury	Severity	Recovery Time
Rotator cuff tear (supraspinatus, infraspinatus, teres minor, subscapularis)	High	3-9 months with potential surgery requirement
Shoulder capsule damage and dislocation	CRITICAL	6-12 months, may require surgical repair
Labral tear (glenoid labrum)	High	4-8 months, often requires arthroscopic surgery
Bicep tendon strain or rupture	Medium	6-12 weeks for strain, 3-6 months for rupture

Application Speed: SLOW and progressive - 3-5 seconds minimum in training, allowing partner time to recognize danger and tap

Tap Signals:

Verbal tap (saying ‘tap’ or making any verbal distress sound)
Physical hand tap (multiple taps with free hand)
Physical foot tap (multiple taps with either foot)
Any distress signal including screaming or unusual sounds

Release Protocol:

Immediately stop all rotational pressure the instant tap is felt or heard
Return the arm toward neutral position (externally rotate back to starting position)
Release the figure-four grip completely
Allow partner to self-assess shoulder mobility before continuing
Never release suddenly or allow arm to spring back forcefully

Training Restrictions:

Never spike or jerk the submission - rotation must be smooth and controlled
Never use competition speed or surprise attacks in training
Always ensure partner has at least one hand free to tap
Do not apply while partner is in awkward body position that prevents tapping
Never combine with weight pressure that restricts breathing while finishing
Respect immediate taps without testing partner’s pain tolerance

Outcomes

Result	Position	Probability
Success	game-over	60%
Failure	Side Control	25%
Counter	Closed Guard	15%

Attacker vs Defender

	Attacker	Defender
Focus	Execute and finish	Escape and survive
Key Principles	Figure-four grip integrity: Lock your own wrist with palm-to…	Straighten the attacked arm immediately when you feel the gr…
Options	7 execution steps	4 defensive options

Playing as Attacker

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Key Principles

Figure-four grip integrity: Lock your own wrist with palm-to-palm contact, creating an unbreakable frame that cannot be hand-fought
Elbow isolation and pinning: Control opponent’s elbow close to your body or pinned to the mat to prevent arm straightening escapes
Shoulder rotation mechanics: The submission comes from rotating the shoulder joint, not pulling the arm - move perpendicular to the arm
Hip connection for control: Keep your hips connected to opponent’s body to prevent them from rolling or turning into the lock
Posture and base maintenance: Maintain strong base throughout to prevent counters and ensure you can apply pressure safely
Progressive pressure application: Increase rotation gradually, allowing partner time to tap before structural damage occurs
Multiple threat creation: Use the Kimura grip to threaten submissions, sweeps, and transitions simultaneously

Execution Steps

Establish control position and arm isolation: From dominant position (side control, mount, or guard), identify the near arm you will attack. Contr…
Thread your other arm under opponent’s isolated arm: Slide your opposite hand under their tricep area, threading it through the space between their arm a…
Complete the figure-four grip: Grab your own wrist with the hand that threaded under their arm, creating a figure-four configuratio…
Establish proper angle and elbow control: Adjust your body position to create perpendicular alignment to their shoulder joint. Pinch their elb…
Begin controlled rotation toward their back: Slowly rotate their hand toward their back, moving perpendicular to their arm rather than pulling it…
Increase rotation pressure until tap: Continue rotating their hand toward their opposite hip or toward the ceiling (depending on position …
Control and transition options: If opponent defends by grabbing their own belt or gi, do not force the submission. Instead, use the …

Common Mistakes

Yanking or spiking the submission quickly without progressive pressure
- Consequence: Severe shoulder injury to partner, potential rotator cuff tear or dislocation without time to tap
- Correction: Always apply rotation slowly over 3-5 seconds minimum in training. The submission should feel like inevitable increasing pressure, not a sudden spike. Partner must have time to recognize danger and tap safely.
Failing to control the elbow, allowing opponent to straighten arm
- Consequence: Complete loss of submission leverage as the arm-straightening defense neutralizes the shoulder rotation
- Correction: Pin the elbow tight to your body or to the mat using your chest. The elbow must remain bent and immobilized for the Kimura to function. Treat elbow control as equally important as the grip itself.
Using incorrect grip: grabbing your own gi, their gi, or interlocking fingers
- Consequence: Weak control that can be broken through hand fighting, loss of leverage and pressure
- Correction: Always use palm-to-palm or palm-to-wrist grip on your own wrist. This creates a frame that cannot be broken by hand fighting. Practice the grip in isolation until it becomes automatic.

Playing as Defender

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Key Principles

Straighten the attacked arm immediately when you feel the grip being established - a straight arm mechanically neutralizes the Kimura’s shoulder rotation
Keep elbows glued to your ribs and torso to prevent arm isolation, making it difficult for the attacker to thread their arm underneath yours
Grip your own belt, gi pants, or opposite arm to create a secondary defensive anchor that prevents rotation even after the figure-four is locked
Turn your body toward the attacker rather than away, as turning away increases rotational leverage on your shoulder joint
Recognize the attack early by monitoring wrist control and arm threading - defense at the grip establishment phase is ten times easier than defense once locked
Use hip movement to change the angle of pressure rather than trying to muscle out of a locked submission with arm strength alone

Recognition Cues

Opponent controls your wrist with one hand while their other hand begins threading under your tricep or upper arm - this is the figure-four grip setup
You feel your arm being isolated away from your body with opponent’s chest or shoulder pinning your elbow close to their torso
Opponent shifts their weight and angle to become perpendicular to your shoulder, establishing the rotation axis needed for the finish
Your hand begins being moved toward your own back or hip against your will, indicating rotation has started and immediate defensive action is required

Escape Paths

Arm straightening defense followed by grip strip and guard recovery - the highest percentage early defense that neutralizes the submission mechanically before it develops
Belt or pants grip defense to stall rotation, then hip escape toward opponent’s legs to recover half guard or create scramble
Forward roll through the Kimura when rotation begins, using opponent’s rotational force to carry you over and relieve shoulder pressure while aiming to land in top position
Turn into attacker to flatten the rotation angle, then use the reduced pressure window to strip the figure-four grip with your free hand and recover defensive frames

Variations

Kimura from Closed Guard: Opponent postures in your closed guard. Break their posture by pulling their head down and attacking the posting arm. Secure the Kimura grip and either finish by opening your guard and rotating, or use the grip to sweep them over your shoulder. (When to use: When opponent posts their hand on the mat or reaches for grips, exposing their arm)

Kimura from Side Control: Classic position for Kimura. Opponent’s near arm is isolated as they frame or attempt to escape. Slide your under-arm through, secure the grip, and rotate their hand toward their back while maintaining chest pressure. (When to use: Most common and highest percentage position when opponent frames with near arm)

Kimura from Mount: When opponent frames or benches to create space from mount, attack the extended arm. Secure the grip and either finish from mount or use it to transition to S-mount for better leverage. (When to use: When mounted opponent pushes or frames, extending their arm)

Kimura from Half Guard: Secure the Kimura grip on opponent’s underhook or crossface arm. Use the control to prevent their pass and either sweep them using the grip as leverage or transition to the back as they defend. (When to use: Essential half guard technique when opponent commits to underhook or crossface)

Kimura from Turtle: Opponent is in turtle and posts an arm for base. Secure the Kimura grip and use it to roll them to their side or back, maintaining the grip throughout the rotation for a finish or back take. (When to use: When turtle opponent posts an arm wide for base, creating the opportunity)

Kimura from Standing: During standing exchanges, secure the Kimura grip on opponent’s lead arm. Use it to control their posture and either throw them with the grip or take them down while maintaining control. (When to use: In stand-up exchanges when opponent reaches or posts their arm)

Kimura from North-South: Transition to North-South and isolate the near arm. Secure the Kimura grip with modified body positioning and rotate their hand toward their own hip, using your body weight for control. (When to use: Natural transition from side control or when opponent turns into you)

Reverse Kimura: Instead of rotating their hand toward their back, rotate it toward their head and away from their body. This creates wristlock pressure combined with shoulder rotation. (When to use: When traditional Kimura angle is blocked but you maintain the grip)

Rolling Kimura: From standing or scrambling positions, secure the grip and initiate a rolling motion, using momentum to take opponent to the mat while maintaining the Kimura control throughout the roll. (When to use: During scrambles or when opponent resists static Kimura attempts)

From Which Positions?

Kimura Trap - Specialized control position built entirely around Kimura grip mechanics
Kimura to Back Take - Primary transition when opponent defends Kimura finish by rolling or turning
North-South to Kimura - Common transition path from side control through north-south to Kimura setup
Rolling Kimura - Dynamic variation using momentum and rolling motion to establish the submission
Rolling Kimura Escape - Counter-technique that can reverse the position when defending
Side Control - Most common and high-percentage position for Kimura application
Half Guard - Key position for bottom player to attack Kimura on opponent’s underhook
Gift Wrap - Alternative shoulder control position that can transition to Kimura
Omoplata - Related shoulder attack that targets similar joint structures with different mechanics
Reverse Kimura - Variation that combines shoulder rotation with wrist lock pressure
Crucifix - Advanced control position where Kimura can be applied with both arms trapped
Americana - Closely related shoulder lock with opposite rotational direction

Match Outcome

Successful execution of Kimura leads to → Game Over

All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.

Safety Guide

Outcomes

Attacker vs Defender

Playing as Attacker

Key Principles

Execution Steps

Common Mistakes

Playing as Defender

Key Principles

Recognition Cues

Escape Paths

Variations

From Which Positions?

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Match Outcome

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