SAFETY: Reverse Kimura targets the Shoulder joint and rotator cuff. Risk: Rotator cuff tear. Release immediately upon tap.
The Reverse Kimura is a shoulder lock variation that applies the same rotational mechanics as the traditional Kimura but with a reversed grip configuration. Instead of the standard figure-four grip with your hand grabbing your own wrist behind the opponent’s arm, the Reverse Kimura involves gripping your wrist in front of the opponent’s arm, creating a different leverage angle and control pattern. This submission is particularly effective from standing positions, front headlocks, and scrambles where traditional Kimura grips may not be accessible. The Reverse Kimura shares the same target area and injury mechanism as the standard Kimura—the shoulder joint and rotator cuff—but the reversed grip often provides superior control in dynamic situations and allows for unique transitions to back takes and other submissions. The technique is highly valued in wrestling-based grappling and no-gi contexts where grip fighting and hand fighting create opportunities for unconventional entries. Understanding both the standard and reverse Kimura variations creates a more complete shoulder lock system that adapts to different gripping scenarios.
Category: Joint Lock Type: Shoulder Lock Target Area: Shoulder joint and rotator cuff Starting Position: Standing Position Success Rate: 52%
Safety Guide
Injury Risks:
| Injury | Severity | Recovery Time |
|---|---|---|
| Rotator cuff tear | High | 3-6 months with surgery potential |
| Shoulder dislocation | High | 6-12 weeks minimum |
| AC joint separation | Medium | 4-8 weeks |
| Labrum tear | CRITICAL | 6-12 months with surgery likely |
Application Speed: SLOW and progressive - 4-6 seconds minimum with constant communication
Tap Signals:
- Verbal tap (most important for standing submissions)
- Physical hand tap on any available surface
- Physical tap with free hand on partner
- Any distress vocalization
- Tapping feet if hands unavailable
Release Protocol:
- Immediately stop all rotational pressure
- Release grip completely and step back
- Allow partner to externally rotate shoulder naturally
- Do not force arm back to neutral position
- Check with partner before continuing training
Training Restrictions:
- Never apply quickly or explosively in training
- Never continue rotation past 90 degrees in practice
- Always maintain verbal communication during application
- Never spike or drop weight during standing applications
- Always allow partner clear tap access with free hand
- Stop immediately at first sign of discomfort
- Never practice on injured shoulders
Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | game-over | 55% |
| Failure | Standing Position | 25% |
| Counter | Front Headlock | 20% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute and finish | Escape and survive |
| Key Principles | Grip reversal provides different leverage angle and control … | Recognize the reverse grip entry early and fight the grip be… |
| Options | 6 execution steps | 4 defensive options |
Playing as Attacker
Key Principles
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Grip reversal provides different leverage angle and control compared to standard Kimura
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Wrist control must be secured before initiating shoulder rotation to prevent slippage
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The reversed grip naturally drives the shoulder into internal rotation creating submission pressure
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Hip positioning and body angle are critical for generating safe, progressive rotational force
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The free hand controls the opponent’s body or head preventing escape and maintaining position
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Standing applications require exceptional balance and base to safely control descent
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The submission can be applied progressively from control position or explosively in scrambles (training vs competition distinction)
Execution Steps
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Establish wrist control and arm isolation: From your starting position (standing, front headlock, or scramble), secure a firm grip on your oppo…
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Thread arm through for reverse grip: Thread your controlling arm through the space between your opponent’s arm and their body, positionin…
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Establish body position and angle: With the reverse Kimura grip secured, adjust your body position to create the optimal angle for shou…
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Begin controlled shoulder rotation: Initiate the submission by slowly rotating the opponent’s shoulder toward their back. The reverse gr…
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Increase rotational pressure progressively: As you feel the opponent’s shoulder tighten, continue the rotation slowly and progressively. In trai…
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Transition or release based on situation: If the opponent taps, release immediately following safety protocols. If they defend successfully by…
Common Mistakes
-
Applying rotational pressure too quickly or explosively
- Consequence: Immediate shoulder injury, torn rotator cuff, or dislocation
- Correction: Always apply pressure slowly and progressively over 4-6 seconds minimum in training. Feel for increasing resistance and stop well before the breaking point. Save explosive applications only for competition if necessary.
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Shallow or incomplete reverse grip allowing slippage
- Consequence: Loss of control, submission escapes, and wasted energy re-establishing grip
- Correction: Ensure your hand reaches fully through the space and grabs your wrist with a deep, secure grip. Your forearm should be tight against their arm creating the figure-four lock. Test the grip before applying rotational pressure.
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Poor body positioning creating awkward angles
- Consequence: Ineffective submission pressure, wasted strength, and vulnerability to counter attacks
- Correction: Adjust your body angle before applying pressure. Your hips and shoulders should be positioned to allow natural rotation. If the movement feels forced or awkward, reposition before continuing.
Playing as Defender
Key Principles
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Recognize the reverse grip entry early and fight the grip before it locks—prevention is far easier than escape
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Keep your elbow pinned tight to your ribcage to deny the rotational space needed for the submission to progress
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Turn toward the attacker rather than away to relieve shoulder pressure without exposing your back
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Fight the controlling wrist grip with your free hand as the primary method of breaking the submission structure
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Maintain posture and stand up whenever possible—the reverse Kimura loses leverage when you achieve an upright position
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Never try to simply power out by pulling your arm straight back, as this plays into the attacker’s leverage angle
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Stay calm and systematic—panicked explosive movements from standing positions create fall and injury risk for both practitioners
Recognition Cues
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Feeling the attacker thread their arm through the space between your arm and torso from the front side rather than behind
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Attacker grips their own wrist with their forearm positioned in front of your trapped arm, creating the reverse figure-four
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Sudden increase in rotational pressure driving your shoulder into internal rotation while your elbow is controlled
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From standing or front headlock, attacker isolates your wrist and begins threading their controlling arm while maintaining head or body pressure
Escape Paths
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Strip the wrist grip with free hand, straighten arm, and circle away to re-establish neutral standing position
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Turn into the attacker to relieve rotation, fight for underhook, and recover to front headlock defense or standing clinch
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Drive forward to technical standup while keeping elbow pinned to ribs, using posture to eliminate their leverage angle
From Which Positions?
Match Outcome
Successful execution of Reverse Kimura leads to → Game Over
All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.