Kimura from Triangle Control

A bent arm with internal shoulder rotation attack from the bottom player’s established triangle entanglement.

Joint Lock Shoulder Lock Targets Shoulder joint, rotator cuff, and shoulder capsule 50% success

Safety

Kimura from Triangle Control targets the Shoulder joint, rotator cuff, and shoulder capsule. Primary risk: Rotator cuff tear (supraspinatus, infraspinatus, teres minor, subscapularis). Tap early; release immediately on the tap. Full safety guide ↓

Play as Attacker Play as Defender

Kimura from Triangle Control is a distinct submission state: the bottom player retains the triangle entanglement while changing the active threat to the arm. Keep the elbow bent and control the wrist while using the triangle entanglement to limit the opponent’s posture. The original triangle choke remains a possible follow-up if the arm defense makes it available. The defender must protect the attacked arm while continuing to address the entanglement. The finish ends the exchange; establishing this arm attack does not itself imply a tap.

Starting Position: Triangle Control · From: Triangle Control (Bottom)

Outcomes

Result	Position	Probability
Success	game-over	50%
Failure	Triangle Control	35%
Counter	Closed Guard	15%

Attacker vs Defender

	Attacker	Defender
Focus	Execute and finish	Escape and survive
Key Principles	Keep the elbow bent and control the wrist while using the tr…	Recognize the change from neck attack to arm attack…
Options	6 execution steps	3 defensive options

Playing as Attacker

→ Full Attacker Guide

Key Principles

• Keep the elbow bent and control the wrist while using the triangle entanglement to limit the opponent’s posture.

• Keep the opponent’s posture controlled while changing the arm grip.

• Choose the arm attack that matches the available joint alignment.

• Maintain control before applying finishing pressure.

• Release immediately at a tap; the arm attack and choke must both be released.

Execution Steps

• Maintain the entanglement: Keep control of the opponent’s posture as you change your attacking grip…

• Identify the available arm position: Confirm that the arm position supports a bent arm with internal shoulder rotation attack…

• Secure the wrist and elbow: Keep the elbow bent and control the wrist while using the triangle entanglement to limit the opponen…

• Address the defensive grip: If the opponent connects their hands, preserve control and address the connection before adding pres…

• Apply controlled finishing pressure: Increase pressure progressively only while the joint alignment and control remain established…

• Release or follow the defense: Release immediately on a tap. If the opponent successfully protects the arm, reassess the triangle c…

Common Mistakes

• Abandoning posture control

  • Consequence: The opponent can disrupt the entanglement
  • Correction: Maintain the triangle while changing grips.

• Forcing the wrong arm alignment

  • Consequence: The intended joint lock is unavailable
  • Correction: Switch to an attack matching the available arm position.

• Pulling with the arms alone

  • Consequence: Control and alignment deteriorate
  • Correction: Use coordinated control of the wrist, elbow, and entanglement.

Playing as Defender

→ Full Defender Guide

Key Principles

• Recognize the change from neck attack to arm attack.

• Protect the attacked joint before attempting positional recovery.

• Keep the neck protected while defending the arm.

• Recover posture only when the joint is protected.

• Tap immediately if you cannot defend safely.

Recognition Cues

• The attacker redirects hand control to the wrist and elbow.

• The attacker aligns the arm for bent arm with internal shoulder rotation.

• The leg entanglement remains in place during the arm attack.

Escape Paths

• Protect the attacked arm, then recover posture and clear the leg entanglement.

• Extract the arm during a safe grip opening while continuing to defend the neck.

From Which Positions?

• Triangle Control
• Closed Guard

Related

• Triangle Choke
• Kimura
• Americana
• Armbar
• Triangle Control - The retained leg entanglement underlying this arm attack
• Closed Guard - Recovery after the triangle entanglement is released

Safety Guide

Injury Risks:

Injury	Severity	Recovery Time
Rotator cuff tear (supraspinatus, infraspinatus, teres minor, subscapularis)	High	Varies with injury severity and treatment; a clinician must assess an injury.
Shoulder capsule damage and dislocation	CRITICAL	Varies with injury severity and treatment; a clinician must assess an injury.
Labral tear (glenoid labrum)	High	Varies with injury severity and treatment; a clinician must assess an injury.
Bicep tendon strain or rupture from combined rotation and extension forces	Medium	Varies with injury severity and treatment; a clinician must assess an injury.

Application Speed: Apply pressure slowly and progressively with a qualified instructor supervising practice. Never jerk or force the joint; release immediately at any tap, request to stop, or sign of distress.

Tap Signals:

• Any hand or foot tap
• A verbal tap or request to stop
• A cry of pain, distress, or loss of responsiveness; stop immediately

Release Protocol:

1. Immediately remove pressure from the arm and neck at any tap or sign of distress.
2. Release the arm grip and open the triangle entanglement without forcing the partner’s limb.
3. Stop the exchange and check on the partner before resuming practice.

Training Restrictions:

• Practice finishing mechanics under qualified supervision with a cooperative partner and minimal pressure.
• Tell the instructor and partner about prior arm, shoulder, or neck injuries before practice.
• Stop immediately if control is lost, pain occurs, or either partner wants to stop.