Defending the Kimura from Back requires immediate recognition and decisive action because the rear triangle position severely limits your mobility and standard kimura defenses. Unlike defending a kimura from guard or side control where you can grab your own leg or belt, the triangle structure pins your torso and restricts your trapped arm’s range of motion. The defender must address both the shoulder lock threat and the underlying positional disadvantage of being in the rear triangle simultaneously. Panicking or focusing exclusively on the kimura grip while ignoring the triangle often accelerates submission rather than creating escape opportunities.
The defensive strategy centers on preventing the attacker from establishing the full figure-four grip, and if that fails, preventing them from pinning your elbow to your ribs. Your free arm is your primary defensive tool—use it to strip grips, create frames, and assist your trapped arm. Every defensive action must account for the triangle choke threat, meaning you cannot simply straighten your arm to escape the kimura without exposing yourself to the armbar, and you cannot tuck defensively without tightening the choke. Successful defense requires threading between these threats while working to extract your trapped arm from the triangle structure entirely, which resolves both the kimura and the positional disadvantage.
Advanced defenders recognize that the best defense begins before the kimura is fully established. Identifying the grip attempt early and fighting the wrist control prevents the attacker from ever reaching the figure-four. If caught deeper, the defender must combine grip fighting with rotational escapes that exploit moments when the attacker’s hands are occupied with the kimura rather than maintaining the triangle. The goal is to either strip the kimura grip and return to standard rear triangle defense, or use the attacker’s submission focus to create enough space to escape the triangle entirely.
Opponent’s Starting Position: Rear Triangle (Top)
How to Recognize This Attack
- Attacker’s bottom hand reaches for your trapped arm’s wrist while their triangle legs remain locked, indicating the transition from choke to shoulder attack
- You feel the attacker threading their top arm under your trapped arm near the tricep, which signals figure-four grip establishment is imminent
- Attacker shifts hip angle toward your trapped arm side and reduces choke pressure momentarily, redirecting their attack from neck to shoulder
- Your trapped arm begins to be pulled away from your body as the attacker works to isolate it from your torso for rotational control
Key Defensive Principles
- Protect your wrist immediately when you feel the attacker’s hand reaching for your trapped arm to prevent C-grip establishment
- Keep your trapped arm’s elbow tight to your own body to deny the attacker the leverage needed for rotational finishing pressure
- Use your free hand to actively grip fight and strip the attacker’s wrist control before the figure-four is locked
- Avoid straightening your trapped arm as a defense since this directly exposes you to armbar transition from the same position
- Maintain chin protection throughout kimura defense because the attacker can instantly switch back to the triangle choke
- Work to extract your trapped arm from the triangle as the primary escape path, which eliminates both kimura and choke threats simultaneously
Defensive Options
1. Strip wrist control early by using your free hand to peel the attacker’s C-grip off your trapped wrist before the figure-four connects
- When to use: As soon as you feel the attacker’s hand reaching for your trapped arm wrist, before the figure-four is established
- Targets: Rear Triangle
- If successful: Returns to standard rear triangle position where you defend the choke without the additional kimura threat
- Risk: Using your free hand to strip grips leaves your neck temporarily less defended, potentially allowing the attacker to switch back to the triangle choke
2. Pin your own elbow to your ribcage and grab your own lapel, belt, or waistband to anchor your trapped arm against rotation
- When to use: When the attacker has established the figure-four grip but has not yet begun rotating your shoulder
- Targets: Rear Triangle
- If successful: Prevents the kimura finish by anchoring your arm, buying time to work grip strips or positional escapes
- Risk: Static anchoring eventually fails against persistent pressure; you must combine this with active escape attempts rather than just holding
3. Rotate your body toward the attacker, turning into them to reduce shoulder torque while working to extract your trapped arm from the triangle
- When to use: When the kimura pressure is building and you need to relieve shoulder stress while creating escape opportunity
- Targets: Back Control
- If successful: Reduces kimura effectiveness and may create enough space to extract trapped arm, transitioning to standard back control defense
- Risk: Rotation can tighten the triangle choke if the attacker adjusts their hip angle to follow your movement
4. Bridge explosively while simultaneously pulling your trapped arm toward your centerline to disrupt the attacker’s grip structure
- When to use: When the attacker commits both hands to the kimura grip, momentarily reducing their positional control through the triangle
- Targets: Back Control
- If successful: Creates enough space to break the figure-four or extract the trapped arm, potentially disrupting the triangle lock
- Risk: Failed bridge wastes significant energy and the attacker can tighten control after you settle back down
Best-Case Outcomes for Defender
→ Rear Triangle
Strip the attacker’s kimura grip before they can establish the figure-four or begin rotation. Use your free hand to peel their wrist control while keeping your elbow tight. Once the kimura grip is broken, return to standard rear triangle defense focusing on chin protection and arm extraction.
→ Back Control
Rotate into the attacker while they are focused on the kimura grip rather than maintaining the triangle structure. Their hands being occupied with the figure-four means the triangle may loosen during your rotation. Use the rotation to extract your trapped arm from the triangle and transition to standard back control bottom, which is significantly less dangerous than the rear triangle.
Test Your Knowledge
Q1: What is the first thing you should do when you feel the attacker reaching for your trapped arm wrist? A: Immediately use your free hand to strip or block the attacker’s C-grip on your wrist before they can thread their other arm to complete the figure-four. The window for prevention is small but far easier than escaping a fully locked kimura. Simultaneously pull your trapped arm tight to your body to reduce the attacker’s access to the wrist.
Q2: Why is straightening your arm a dangerous response to the kimura from back? A: Straightening the arm creates the exact configuration needed for an armbar finish. The attacker already controls your wrist through the kimura grip, so straightening your elbow gives them a direct armbar by simply extending their hips against the back of your elbow. You must keep the arm bent at all times, using elbow-to-ribcage pinning and grip anchors as your primary defense rather than arm extension.
Q3: How do you defend the kimura without exposing yourself to the triangle choke? A: Maintain your chin tucked to your chest as the baseline posture throughout all kimura defense. Use your free hand for grip fighting against the kimura rather than reaching to defend your neck, since your chin tuck provides passive choke defense. If you must rotate, turn your face toward the non-choking leg. The key principle is that your legs and chin handle choke defense while your free hand handles kimura defense.
Q4: The attacker has a fully locked figure-four on your trapped arm - what is your escape sequence? A: First, anchor your trapped arm by gripping your own lapel, belt, or waistband to prevent rotation. Second, use your free hand to attack the weakest link in the figure-four, which is the attacker’s wrist-to-wrist connection. Third, simultaneously rotate your body toward the attacker to reduce shoulder torque while working grip strips. Fourth, once the grip loosens, pull your elbow tight and work to extract the trapped arm from the triangle entirely.
Q5: When the attacker shifts from triangle choke to kimura, what defensive window does this create? A: The transition from choke to kimura requires the attacker to release seatbelt or harness control to establish the kimura grip, momentarily reducing their upper body control. During this window, the triangle legs still control your torso, but the attacker’s hands are occupied with grip work rather than choking. This is the optimal moment to attempt rotation or bridging escapes, as the attacker cannot simultaneously establish the new grip and resist your movement.