SAFETY: Kimura targets the Shoulder joint, rotator cuff, and shoulder capsule. Risk: Rotator cuff tear (supraspinatus, infraspinatus, teres minor, subscapularis). Release immediately upon tap.
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.
Key Attacking 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
Prerequisites
- Establish dominant position with significant control (side control, mount, or guard with breaking posture)
- Isolate one of opponent’s arms away from their body or defending position
- Secure proper figure-four grip with your palm against your own wrist (not grabbing your gi or their gi)
- Control opponent’s elbow position - must keep it close to your body or pinned to prevent straightening
- Establish hip connection and base to prevent opponent from rolling or turning into the lock
- Ensure opponent has ability to tap with free hand before applying rotation
- Create angle that allows perpendicular rotation of the shoulder joint
Execution Steps
- Establish control position and arm isolation: From dominant position (side control, mount, or guard), identify the near arm you will attack. Control opponent’s wrist with your same-side hand, preventing them from framing or defending. Use your body weight and positioning to prevent their escape while isolating this arm from their other defensive tools. (Timing: Take 2-3 seconds to establish solid control)
- 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 and body. Your hand should emerge on the far side of their arm, reaching toward where you will establish the grip. Keep their elbow close to your body during this threading motion to prevent them from straightening their arm as a defense. (Timing: 1-2 seconds for threading motion)
- Complete the figure-four grip: Grab your own wrist with the hand that threaded under their arm, creating a figure-four configuration. The grip should be palm-to-palm or palm-to-wrist - never grip your own gi or their gi. Ensure the grip is tight and secure before applying any pressure. Their arm should be bent at approximately 90 degrees with their hand pointed toward their own head or shoulder. (Timing: 1-2 seconds to secure grip properly)
- Establish proper angle and elbow control: Adjust your body position to create perpendicular alignment to their shoulder joint. Pinch their elbow tight to your body or pin it to the mat using your chest and shoulder. This elbow control is critical - if they can straighten their arm, the Kimura becomes ineffective. Your hips should be connected to their body to prevent rolling escapes. (Timing: 2-3 seconds to optimize positioning)
- Begin controlled rotation toward their back: Slowly rotate their hand toward their back, moving perpendicular to their arm rather than pulling it. The rotation should be smooth and progressive, not jerky. Maintain elbow control throughout - the elbow should not move away from the pinning position. Keep your elbows tight to your body to maximize leverage and control. (Timing: 3-5 seconds of progressive rotation)
- Increase rotation pressure until tap: Continue rotating their hand toward their opposite hip or toward the ceiling (depending on position and angle). Maintain constant elbow pinning - the shoulder will rotate further as you lift or rotate their hand. Stop immediately upon any tap signal. The finish requires only 3-5 inches of additional rotation once proper position is achieved. Never force or spike the finish. (Timing: 2-4 seconds to finish, stop immediately on tap)
- Control and transition options: If opponent defends by grabbing their own belt or gi, do not force the submission. Instead, use the Kimura grip to control their posture and threaten transitions to back take, mount advancement, or alternative submissions. The grip itself is a powerful control position even without finishing. Maintain connection and base throughout any transition. (Timing: Continuous control until transition or release)
Possible Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | game-over | 60% |
| Failure | Side Control | 25% |
| Counter | Closed Guard | 15% |
Opponent Defenses
- Grabbing own belt or gi pants to prevent rotation (Effectiveness: High) - Your Response: Do not fight the grip war. Instead, use the Kimura control to transition: roll them over for back take, switch to armbar by stepping over the head, or use it to advance position to mount. The belt grab prevents the finish but creates other opportunities. → Leads to Side Control
- Straightening the arm completely to remove bend at elbow (Effectiveness: High) - Your Response: This defense defeats the Kimura mechanically. Prevent it by keeping their elbow pinned close to your body or the mat. If they succeed in straightening, transition to different attacks like wrist locks, or re-establish elbow bend by using your body weight to fold their arm. → Leads to Side Control
- Rolling forward into the lock to relieve shoulder pressure (Effectiveness: Medium) - Your Response: Anticipate the roll and follow them through, maintaining the grip and control. Their roll often gives you their back - maintain the Kimura grip and establish back control with seat belt. Alternatively, use their momentum to sweep them if you’re on bottom. → Leads to Closed Guard
- Posturing up and lifting you to relieve pressure (from guard) (Effectiveness: Medium) - Your Response: Use your legs to break their posture back down. If they succeed in standing, the Kimura becomes a stand-up wrestling position - you can use it to stand with them or sweep them. Never let go of the grip as it provides control even while standing. → Leads to Closed Guard
- Turning toward you to change the angle and relieve pressure (Effectiveness: Low) - Your Response: This defensive turn often worsens their position. Maintain the grip and use their turn to take their back or advance to mount. The Kimura grip remains powerful through their rotation. Follow their movement and establish new control as they expose their back. → Leads to Side Control
Test Your Knowledge
Q1: What is the minimum application time for a Kimura in training, and why is this critical? [SAFETY-CRITICAL] A: The minimum application time is 3-5 seconds of progressive, controlled rotation. This is critical because the shoulder joint, rotator cuff, and shoulder capsule can be severely damaged without adequate time for the partner to recognize the danger and tap. Shoulder injuries from submissions often require surgery and 6-12 months recovery, so slow application is a fundamental safety principle that must never be compromised.
Q2: What must you ensure about your opponent’s body position before finishing a Kimura, and what injury could occur if you don’t? [SAFETY-CRITICAL] A: You must ensure your opponent has at least one hand completely free to tap before applying finishing pressure. If both hands are trapped or they are in a position where they cannot physically signal submission, they could suffer a rotator cuff tear, shoulder dislocation, or labral tear because they cannot tap even if they recognize the danger. This is a critical safety violation that can cause permanent damage.
Q3: Why is controlling the opponent’s elbow position essential for the Kimura, and what happens mechanically if you fail to do this? A: Controlling the elbow by pinning it close to your body or to the mat prevents the opponent from straightening their arm. If the arm straightens completely, the Kimura loses all mechanical advantage because shoulder rotation requires the arm to be bent. A straight arm neutralizes the submission entirely as the shoulder joint cannot be effectively rotated when the arm is extended. The elbow control is as critical as the grip itself.
Q4: What is the correct grip for a Kimura, and why are other grip variations ineffective or dangerous? A: The correct grip is palm-to-palm or palm-to-wrist contact with your own wrist, creating a figure-four frame. Gripping your own gi, their gi, or interlocking fingers creates weak control that can be broken through hand fighting. The palm-to-wrist grip creates an unbreakable frame and ensures force is transmitted efficiently. Incorrect grips also make it harder to release quickly upon a tap, creating a safety issue.
Q5: What is the proper direction of force application for a Kimura, and why is pulling the arm away from the body ineffective? A: The force must be applied perpendicular to the arm, rotating the hand toward the opponent’s back or opposite hip in a circular motion. Pulling the arm away from the body is ineffective because it does not create the necessary shoulder rotation that causes the submission. The mechanical principle is rotation of the shoulder joint while keeping the elbow stationary, not linear pulling which the opponent can resist with shoulder strength.
Q6: When opponent grabs their own belt to defend the Kimura, what should you do and why is forcing the finish incorrect? A: When opponent grabs their belt, you should recognize this as a successful defense and transition to other attacks rather than forcing the submission. Appropriate transitions include rolling them for a back take, switching to an armbar by stepping over the head, or using the control to advance position. Forcing against a belt grip is ineffective, wastes energy, and creates injury risk if you spike it attempting to break their defense. The Kimura grip itself provides control for multiple attacking options.
Q7: What are the immediate steps you must take upon receiving a tap during a Kimura application? [SAFETY-CRITICAL] A: Immediately stop all rotational pressure the instant the tap occurs. Return the arm toward neutral position by externally rotating it back to the starting position - never let it spring back forcefully. Release the figure-four grip completely. Allow your partner to self-assess their shoulder mobility before continuing training. The release must be controlled and deliberate to prevent additional injury from sudden release of tension on the shoulder joint.
Q8: From a strategic perspective, why is the Kimura considered one of the most versatile submissions in BJJ? A: The Kimura is versatile because it can be applied from virtually every position - top, bottom, standing, transitional, guard, turtle, side control, mount, and scrambles. Beyond being a direct submission, the grip creates powerful control that enables sweeps, back takes, position advancement, and chains to other submissions. Even when the submission itself is defended, the grip controls the opponent’s posture and movement, making it a fundamental technique across all belt levels and strategic situations.
Q9: Your opponent begins to posture up while you have the Kimura grip from closed guard - what adjustment secures the finish? A: As they posture, open your guard and rotate your hips perpendicular to their body while maintaining the grip. Use your legs to hook their far leg or hip to prevent them from standing fully. If they continue posturing, use the grip to come up with them in a seated position, using their posture to add rotational force. You can also hip escape to the side and use your bottom leg as a hook while driving their hand toward the mat. The key is never releasing the grip and using their postural energy against them.
Q10: What anatomical structures does the Kimura attack, and what indicates you are approaching the breaking point? A: The Kimura attacks the shoulder joint capsule, the rotator cuff muscles (supraspinatus, infraspinatus, teres minor, subscapularis), the glenoid labrum, and can stress the bicep tendon. Indicators of approaching the breaking point include: opponent’s shoulder elevating as the arm rotates behind their back, visible tension in the deltoid and surrounding musculature, opponent’s inability to prevent further rotation, and their arm reaching approximately 45-60 degrees of internal rotation behind their back. At this point, minimal additional rotation creates submission pressure.
Q11: How do you adjust your grip positioning when transitioning from side control Kimura to mounted Kimura mid-finish? A: As you transition from side control to mount while maintaining the Kimura grip, you must adjust your elbow pinning from your chest to your thigh or hip. Step over into mount while keeping the figure-four grip intact and their elbow trapped between your body and arm. Once mounted, use your knee closest to their trapped arm to reinforce elbow control. The mount position changes the angle of rotation - you can now drive their hand toward their opposite hip using your body weight from above rather than perpendicular pressure. Maintain hip connection throughout to prevent bridging escapes.
Q12: In competition, what finishing strategy maximizes Kimura success rate while maintaining safety? A: In competition, secure the grip with complete elbow isolation before attempting the finish - rushed attempts without proper control result in failed submissions and lost position. Use the grip first to stabilize and advance position if needed. When finishing, apply steady progressive rotation rather than explosive movements, as controlled pressure is more difficult to defend than jerky applications that opponents can explosively counter. If opponent defends with belt grip, immediately transition to back take or armbar rather than stalling. Time pressure application when opponent is recovering from a sweep or positional change, as defensive capacity is reduced during transitions.