SAFETY: Kimura from Modified Scarf Hold targets the Shoulder and elbow joint. Risk: Shoulder dislocation or torn rotator cuff from excessive external rotation. Release immediately upon tap.
The Kimura from Modified Scarf Hold is a high-percentage shoulder lock that exploits the superior arm control inherent in the modified scarf hold position. The chest-to-chest pressure and near-arm entrapment characteristic of this pin create ideal conditions for isolating the opponent’s arm and applying the figure-four double wrist lock to attack the shoulder through forced external rotation.
This submission capitalizes on the positional advantages unique to modified scarf hold. The bottom player’s near arm is already partially compromised by the pinning mechanics, requiring minimal positional adjustment to secure the kimura grip. The attacker transitions from control to attack by threading under the trapped arm, establishing the figure-four grip, and using a combination of hip pressure and rotational force to walk the wrist behind the opponent’s back. The mechanic is particularly effective because the chest pressure limits the defender’s ability to create space, sit up, or generate the frames needed to prevent arm isolation.
The Kimura from Modified Scarf Hold appears frequently in both gi and no-gi competition at all levels. Its reliability stems from the natural grip availability and the submission chain it creates. Defenders who straighten their arm to prevent the kimura expose themselves to americanas, while those who grip their own body create a battle of leverage the attacker typically wins through superior positioning. Advanced practitioners integrate this attack into a systematic flow between kimura, americana, and armbar threats that forces the defender into progressively worse positions with each defensive reaction.
Category: Joint Lock Type: Arm Lock Target Area: Shoulder and elbow joint Starting Position: Modified Scarf Hold From Position: Modified Scarf Hold (Top) Success Rate: 50%
Safety Guide
Injury Risks:
| Injury | Severity | Recovery Time |
|---|---|---|
| Shoulder dislocation or torn rotator cuff from excessive external rotation | CRITICAL | 3-6 months, may require surgical repair |
| Torn shoulder labrum from rotational force exceeding joint range of motion | High | 4-8 months, often requires arthroscopic surgery |
| Elbow hyperextension or ligament sprain from combined rotational and extension force | Medium | 2-6 weeks with rest and rehabilitation |
Application Speed: SLOW and progressive. The shoulder joint has limited external rotation range and injuries occur rapidly once that range is exceeded. Never jerk, spike, or explosively crank the kimura. Apply steady, incremental pressure and give your partner time to recognize and signal submission.
Tap Signals:
- Verbal tap (saying ‘tap’ or any distress signal)
- Physical hand tap on partner, own body, or mat
- Physical foot tap on mat with either leg
- Any unusual vocalization, screaming, or distress signal
Release Protocol:
- Release immediately upon any tap signal without hesitation
- If in doubt about whether a tap occurred, release and re-establish position
- Gradually release rotational pressure rather than dropping the arm suddenly to avoid secondary strain
- Check partner’s shoulder mobility and comfort after release before continuing
Training Restrictions:
- Never apply full-speed kimura cranking during drilling or light sparring rounds
- Apply the finish slowly and progressively in all training contexts regardless of partner skill level
- Beginners should practice grip mechanics and positioning without applying finishing rotational pressure
- White and blue belts should drill the sequence at reduced intensity with emphasis on control, not speed
Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | game-over | 50% |
| Failure | Modified Scarf Hold | 30% |
| Counter | Half Guard | 20% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute and finish | Escape and survive |
| Key Principles | Maintain chest pressure throughout the entire submission seq… | Keep your near-side elbow glued to your ribs at all times—th… |
| Options | 8 execution steps | 3 defensive options |
Playing as Attacker
Key Principles
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Maintain chest pressure throughout the entire submission sequence—never sacrifice positional control for grip acquisition
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Use body mechanics rather than arm strength to generate rotational force on the shoulder joint
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Isolate the elbow from the ribs before attempting any rotational finish—this is the critical control threshold
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Apply progressive, steady pressure rather than explosive cranking to allow safe training and reliable competition finishes
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Treat the kimura grip as a control position first and a submission second—the grip itself creates offensive options
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Chain between kimura and americana based on the defender’s arm angle, converting every defensive reaction into a new attack
Execution Steps
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Consolidate Modified Scarf Hold control: From established Modified Scarf Hold, ensure your chest is heavy on the opponent’s chest with their …
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Thread arm under opponent’s near tricep: While maintaining chest pressure, release the head wrap or arm control and slide your near-side arm …
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Secure the figure-four kimura grip: Grab the opponent’s wrist with your threading hand using a thumb-around grip. Simultaneously bring y…
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Clear the elbow from the ribs: Use your hip pressure and body weight to pry the opponent’s elbow away from their ribcage. Drive you…
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Pin the upper arm to the mat: Once the elbow clears the ribs, drive the opponent’s upper arm to the mat using downward pressure fr…
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Walk the wrist behind the opponent’s back: Begin rotating their forearm behind their back by walking the wrist in small controlled increments t…
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Apply finishing rotational pressure: Continue the external rotation until you meet significant resistance from the shoulder joint reachin…
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Secure the tap and release safely: Maintain finishing pressure until the opponent signals submission through verbal or physical tap. On…
Common Mistakes
-
Releasing chest pressure to reach for the arm with both hands
- Consequence: Opponent immediately sits up, creates frames, or turns to recover guard during the momentary loss of top pressure
- Correction: Keep your chest heavy on the opponent throughout the entire grip transition—thread one arm at a time while maintaining body weight on their torso
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Attempting to rotate the arm before clearing the elbow from the ribs
- Consequence: The ribs act as a structural block preventing rotation, resulting in wasted energy and the opponent successfully anchoring their defense
- Correction: Dedicate time and effort to prying the elbow away from the ribs using hip pressure and knee wedging before any rotational attempt
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Using arm strength rather than body mechanics to generate the finishing rotation
- Consequence: Rapid grip fatigue, inconsistent finishing pressure, and inability to overcome strong opponents who can resist arm-only force
- Correction: Rotate your entire upper body to generate torque through the figure-four grip—your arms transmit force, they do not create it
Playing as Defender
Key Principles
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Keep your near-side elbow glued to your ribs at all times—this single habit defeats the majority of kimura attempts before they begin
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Recognize the submission threat early by feeling for the attacker’s arm threading under your tricep
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Anchor your near arm by gripping your own belt, lapel, or far-side hip to create structural resistance against arm isolation
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Exploit the attacker’s transition from pin control to submission grip—this is when their chest pressure is lightest and escape windows open
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Time your bridge and escape attempts for the moment the attacker commits both hands to the figure-four, temporarily reducing their base
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If the figure-four is locked, prioritize preventing elbow separation from your ribs over attempting to break the grip directly
Recognition Cues
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Opponent releases their head wrap or arm control around your head and begins threading their arm underneath your near-side tricep
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You feel the attacker’s hand sliding between your upper arm and your ribcage, seeking to emerge on the wrist side of your near arm
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Opponent shifts their weight slightly and frees both hands simultaneously, indicating transition from pinning grips to submission grips
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Sudden increase in downward pressure on your near arm as the attacker begins prying your elbow away from your body
Escape Paths
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Bridge toward the attacker during the grip transition phase and insert your knee to recover half guard before the figure-four is consolidated
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Straighten your arm forcefully and retract your elbow back to your ribs before the attacker can establish rotational control
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Roll away from the attacker explosively if the figure-four is locked but elbow is not yet pinned, pulling your arm free during the roll
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Turn into the attacker and get chest-to-chest, using the proximity to neutralize the rotational angle needed for the finish
From Which Positions?
Match Outcome
Successful execution of Kimura from Modified Scarf Hold leads to → Game Over
All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.