SAFETY: Reverse Armbar from Mount targets the Elbow joint (hyperextension with reverse rotation). Tap early and often. Your safety is more important than any training round.
Defending the Reverse Armbar requires a fundamentally different approach than defending the standard armbar because the attacker’s body rotation changes the direction of breaking pressure and eliminates many conventional defensive responses. The inverted positioning means that standard armbar defenses—such as turning the thumb down, stacking, or clasping hands together—are far less effective against the reverse variation. The defender must recognize the rotation early and act during the transitional phase, as once the attacker completes the 180-degree rotation and reestablishes leg control, escape options become extremely limited. The primary defensive window exists during the rotation itself, when the attacker is most vulnerable to losing arm control. Successful defense depends on preventing full arm extension, disrupting the rotation before it completes, and exploiting the momentary instability that the attacker experiences while transitioning between standard and reverse positions. Understanding the attacker’s sequential mechanics—pin, rotate, reestablish, extend—allows the defender to identify which phase they are in and apply the appropriate counter for that specific moment.
Opponent’s Starting Position: Mount (Top)
How to Recognize This Submission
How do you know when someone is attempting Reverse Armbar from Mount?
- Attacker pulls your arm tightly across their chest and pins it to their sternum with both hands while in armbar position
- Attacker begins rotating their body toward your feet while maintaining grip on your wrist, with their head tracking downward
- Attacker’s legs release standard armbar head and shoulder control and reposition during the rotation phase
- You feel a rotational torque on your trapped arm as the attacker’s hips swing over and past your arm toward your legs
Key Defensive Principles
What are the key principles for defending Reverse Armbar from Mount?
- Bend the trapped arm immediately and grip your own lapel or opposite bicep to resist extension at all costs
- Disrupt the rotation early by rolling your body in the same direction as the attacker before they complete the 180-degree turn
- Never allow your arm to fully straighten once the attacker has established the reversed position
- Use the attacker’s transitional instability during rotation as your primary escape window
- Keep your elbow tight to your body and turn your wrist pronated (thumb down) to reduce the effectiveness of the reverse breaking angle
- Frame against the attacker’s hips with your free hand to prevent them from establishing tight hip-to-shoulder connection
- Prioritize recovering guard or returning to mount bottom over fighting the submission from a fully locked position
Defensive Options
What can you do to defend against Reverse Armbar from Mount?
1. Roll with the rotation and follow the attacker’s movement to prevent arm isolation
- When to use: During the early rotation phase before the attacker completes the 180-degree turn and reestablishes leg control
- Targets: Mount
- If successful: You end up in mount bottom or scramble position with your arm freed, resetting to a positional battle
- Risk: If timed poorly, you may accelerate the attacker’s rotation and end up in a worse position with arm still trapped
2. Bend elbow aggressively and grip own collar or opposite shoulder to create a defensive lock
- When to use: When the attacker has completed rotation but has not yet applied extension pressure, and your arm still has bend
- Targets: Mount
- If successful: Attacker cannot extend your arm for the finish and must release to reset or transition to another attack
- Risk: Sustained grip fighting is energy-intensive and the attacker may eventually break the grip if you cannot escape the position
3. Bridge explosively and turn into the attacker during their rotation to collapse their base
- When to use: When the attacker is mid-rotation and their balance is compromised, before they plant their legs in the new position
- Targets: Closed Guard
- If successful: You disrupt the attacker’s rotation, free your arm, and recover to closed guard or half guard
- Risk: Explosive bridging while arm is trapped can increase joint stress if the attacker maintains grip during the disruption
Escape Paths
How do you escape Reverse Armbar from Mount?
- Roll with the attacker’s rotation during the transition phase to prevent arm isolation and recover to mount bottom or scramble
- Bend the trapped arm and grip your own lapel to stall the finish, then hip escape to create space and extract the arm back to your body
- Bridge into the attacker during mid-rotation to collapse their base, free the arm, and recover to closed guard or half guard
Best-Case Outcomes for Defender
What is the best outcome when defending Reverse Armbar from Mount?
→ Mount
Disrupt the attacker’s rotation by rolling with their movement or bridging explosively during the transitional phase, forcing them to abandon the submission and return to standard mount where you resume mount escape sequences
→ Closed Guard
Bridge into the attacker during mid-rotation to collapse their base, free your arm during the scramble, and immediately close your guard around their waist before they can reestablish top control