SAFETY: Kimura from Half Guard targets the Shoulder joint and rotator cuff. Risk: Rotator cuff tear (supraspinatus, infraspinatus tendons). Release immediately upon tap.
The Kimura from Half Guard is one of the most versatile shoulder locks in Brazilian Jiu-Jitsu, applicable from both top and bottom positions. From bottom half guard, the Kimura serves as a powerful sweep, back take, and submission threat that capitalizes on the opponent’s commitment to passing. The technique exploits the natural underhook battle that occurs in half guard, transforming defensive frames into offensive attack chains. The submission targets the shoulder joint through a figure-four grip configuration, creating rotational pressure on the glenohumeral joint and surrounding connective tissue. What makes this variation particularly effective is its capacity to create dilemmas: opponents must choose between defending the submission, preventing the sweep, or stopping the back take. This multi-threat system exemplifies modern half guard strategy, where single techniques branch into complete attacking sequences based on defensive reactions.
Category: Joint Lock Type: Shoulder Lock Target Area: Shoulder joint and rotator cuff Starting Position: Half Guard Success Rate: 62%
Safety Guide
Injury Risks:
| Injury | Severity | Recovery Time |
|---|---|---|
| Rotator cuff tear (supraspinatus, infraspinatus tendons) | High | 3-6 months with surgical intervention possible |
| Shoulder dislocation (anterior or posterior) | CRITICAL | 6-12 weeks minimum, potential chronic instability |
| Labral tear (glenoid labrum damage) | High | 4-8 months with surgery |
| Bicep tendon strain or rupture | Medium | 6-12 weeks |
Application Speed: SLOW and progressive - 3-5 seconds minimum from control to finish
Tap Signals:
- Verbal tap (any vocalization)
- Physical hand tap on opponent or mat
- Physical foot tap on mat or opponent
- Any distress signal or movement cessation
Release Protocol:
- Immediately release rotational pressure (stop arm movement)
- Release figure-four grip configuration
- Return arm to neutral position slowly
- Release positional control completely
- Check partner for injury before continuing
Training Restrictions:
- Never spike or jerk the submission application
- Never use competition speed during training rolls
- Always allow clear tap access (hand/foot free)
- Never apply full rotation in drilling without partner consent
- Avoid repeated applications on same partner in single session
Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | game-over | 60% |
| Failure | Half Guard | 25% |
| Counter | Closed Guard | 15% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute and finish | Escape and survive |
| Key Principles | Control before submission - Establish figure-four grip a… | Elbow discipline - Keep your elbow tight to your ribs an… |
| Options | 6 execution steps | 4 defensive options |
Playing as Attacker
Key Principles
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Control before submission - Establish figure-four grip and positional control before applying rotational pressure
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Hip connection - Maintain hip-to-hip connection to prevent opponent from rolling forward and escaping
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Elbow isolation - Keep opponent’s elbow tight to their body and away from mat to prevent posting
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Progressive rotation - Apply shoulder rotation gradually in training, allowing partner time to recognize danger
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Multiple threat integration - Use Kimura as entry point for sweeps, back takes, and submission chains
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Grip hierarchy - Prioritize figure-four completion over positional advancement until grip is secure
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Weight distribution - Shift weight to prevent opponent’s hip escape while maintaining submission control
Execution Steps
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Establish Underhook and Wrist Control: From bottom half guard, establish a deep underhook on opponent’s far arm while they attempt to cross…
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Create Space and Swim Figure-Four: Create a small frame with your underhook side elbow against their hip while pulling their wrist acro…
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Secure Figure-Four and Hip Connection: Lock in the figure-four grip configuration with your palm-to-palm or wrist-to-wrist connection. Simu…
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Walk Shoulders to Perpendicular Angle: Using small hip movements and shoulder walking, begin to angle your body perpendicular to your oppon…
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Create Shoulder Rotation Decision Point: Begin applying slow, controlled rotation to their shoulder by pulling their wrist toward their back …
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Finish or Transition Based on Defense: If opponent remains stationary and doesn’t tap: continue rotation until they tap (in training, stop …
Common Mistakes
-
Applying sudden or jerking rotation to the shoulder joint
- Consequence: High risk of causing rotator cuff tear, shoulder dislocation, or labral damage. This is the most dangerous error in Kimura execution
- Correction: Always apply rotation progressively over 3-5 seconds minimum in training. Smoothly increase pressure and monitor partner’s reactions. In competition, faster application is acceptable but never jerking motions
-
Losing hip connection while attempting the submission
- Consequence: Opponent can granby roll forward over their shoulder, escaping the submission and potentially reversing position
- Correction: Maintain chest-to-chest connection after securing figure-four. If they create space, close it immediately before applying rotational pressure. Your hips should follow their movement throughout the technique
-
Attempting to finish the Kimura without proper figure-four grip security
- Consequence: Opponent can slip their arm free, and you lose the submission opportunity while exhausting energy. Creates false sense of control
- Correction: Never rush the figure-four completion. Ensure palm-to-palm or wrist-to-wrist connection is solid before advancing to rotation phase. If grip feels loose, reset and secure it properly
Playing as Defender
Key Principles
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Elbow discipline - Keep your elbow tight to your ribs and never let it extend away from your body when in half guard top
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Early grip denial - Break wrist control before the figure-four is established; defense becomes exponentially harder once the grip is locked
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Posture maintenance - Drive your weight forward through your shoulder to limit the bottom player’s ability to create the angle needed for the Kimura
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Arm retraction priority - If your wrist is controlled, immediately work to withdraw your arm back to your centerline rather than fighting the grip in an extended position
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Avoid rolling forward - Forward rolls to escape rotation often expose your back to the attacker who maintains the Kimura grip throughout the roll
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Base preservation - Never post your free hand to resist rotation without anchoring your base, as this opens the Kimura sweep
Recognition Cues
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Bottom player secures 2-on-1 wrist control on your posting or underhook arm from half guard bottom
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You feel the bottom player’s underhook hand releasing from your back and swimming toward your wrist or forearm
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Bottom player begins angling their body perpendicular to yours (creating an L-shape) while controlling your arm
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You feel a figure-four grip locking around your wrist with their opposite hand gripping their own wrist
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Bottom player’s hips close distance to yours and their chest reconnects after briefly creating space for grip entry
Escape Paths
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Strip figure-four grip by peeling their hand off your wrist with your free hand, then immediately retract your arm to your centerline and drive forward with crossface pressure to re-establish top control
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Circle your trapped arm in a large arc (up and over their grip) to break the figure-four configuration while driving your shoulder into their chest to prevent them from following your arm movement
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If rotation has begun, turn your body in the same direction as the rotation (rolling with it) while explosively pulling your elbow to your hip - this can create enough slack to extract your arm before damage occurs
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Accept the position change by deliberately posturing up and extracting your leg from half guard, standing to break the angle and using your standing base to peel their grips systematically
From Which Positions?
Match Outcome
Successful execution of Kimura from Half Guard leads to → Game Over
All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.