Kimura Trap Bottom is a highly effective control position from the bottom where the practitioner secures a Kimura grip on the opponent’s arm while establishing positional control through underhooks, lockdown, or other retention mechanisms. This position represents a paradigm shift in bottom-side control thinking, transforming what would traditionally be a defensive position into an offensive platform. The Kimura grip serves as both a control mechanism and an offensive threat, allowing the bottom player to off-balance, sweep, or submit the opponent while maintaining defensive integrity.
The position is most commonly entered from half guard bottom, side control bottom, or turtle when the opponent overcommits with their arm placement or fails to defend the Kimura grip establishment. The bottom practitioner uses the Kimura grip to control the opponent’s shoulder and arm, creating a mechanical advantage that disrupts the top player’s base and posture. This grip, combined with hip positioning and leg entanglement, creates a system where the bottom player can systematically work toward sweeps, back takes, or submissions despite being in what appears to be an inferior position.
The Kimura Trap Bottom exemplifies modern BJJ’s emphasis on creating offensive opportunities from defensive positions. Rather than simply surviving or escaping, the practitioner uses the Kimura grip as an anchor point to control distance, manipulate the opponent’s weight distribution, and create dilemmas that force reactions. The system includes high-percentage techniques like the Old School Sweep, rolling Kimura, and back takes that all stem from the same foundational grip, creating a cohesive attacking system rather than isolated techniques.
Strategically, the position forces top players into impossible choices—they must simultaneously defend the Kimura submission, prevent sweeps, and maintain positional control, but cannot effectively address all three threats. This creates predictable defensive reactions that the bottom player can exploit with predetermined counters. The position is particularly effective in both gi and no-gi contexts, with the Kimura grip providing reliable control regardless of friction and grip variations available. Advanced practitioners use the Kimura Trap Bottom as their primary half guard system, often preferring it to traditional underhook-based approaches due to its superior control and finishing mechanics.
Position Definition
What is Kimura Trap (Bottom)?
- Practitioner maintains Kimura grip on opponent’s arm with figure-four configuration (practitioner’s outside hand grips their own wrist after threading under opponent’s arm), ensuring deep grip placement near opponent’s elbow for maximum control and leverage while preventing grip breaks through constant inward pressure and elbow positioning that protects the lock structure
- Practitioner’s body positioned on bottom with shoulders on or near mat, using hips and legs to create connection with opponent through half guard lockdown, butterfly hooks, or other retention mechanisms that prevent opponent from settling weight and establishing stable top control while maintaining mobility for sweeping and transitional movements
- Opponent positioned on top or side with trapped arm extended forward or pulled across their body, creating structural weakness in their base as the Kimura grip forces their shoulder into compromised position and limits their ability to distribute weight effectively or establish stable posting positions with their compromised arm
- Practitioner maintains active hip positioning and frame management with free arm, using shoulder pressure, forearm frames, or underhooks to control distance and prevent opponent from achieving crushing pressure or advancing position while working the Kimura system, creating space necessary for sweeping mechanics and preventing complete flattening that would neutralize offensive options
Prerequisites
What do you need before playing Kimura Trap (Bottom)?
- Opponent commits arm forward or across body in half guard, side control, or turtle position, creating opportunity to thread arm under and establish Kimura grip
- Practitioner able to secure deep Kimura grip with proper hand positioning (own wrist grip) before opponent recognizes threat and withdraws arm
- Practitioner maintains some form of guard retention or hip mobility to prevent opponent from completely flattening and establishing crushing top pressure
- Sufficient space and mobility to work hips and execute sweeping or off-balancing movements despite being on bottom
Key Defensive Principles
What are the key principles for defending Kimura Trap?
- Maintain deep Kimura grip with figure-four configuration positioned as close to opponent’s elbow as possible for maximum control and submission threat
- Use Kimura grip to control opponent’s shoulder and disrupt their base by pulling arm across their body or driving it behind their back, forcing weight shifts
- Keep hips mobile and active, using lockdown, butterfly hooks, or hip movement to prevent opponent from settling weight and establishing stable position
- Create constant dilemmas where opponent must choose between defending Kimura submission, preventing sweep, or maintaining top position control
- Use free arm strategically for frames, underhooks, or additional control points that complement the Kimura grip and enable offensive transitions
- Maintain proper distance control to prevent opponent from posturing away and breaking Kimura grip or driving forward to establish crushing pressure
- Work systematically through Kimura Trap System sequences (sweeps, back takes, submissions) rather than forcing single techniques, flowing between options based on opponent reactions
Decision Making from This Position
What should you do from Kimura Trap (Bottom)?
If opponent widens base and posts far leg to defend Kimura submission:
- Execute Old School Sweep → Mount (Probability: 70%)
- Execute Rolling Kimura → Mount (Probability: 55%)
If opponent turns into Kimura grip to alleviate shoulder pressure or defend submission:
- Execute Kimura to Back Take → Back Control (Probability: 75%)
- Execute Half Guard to Back Take → Back Control (Probability: 60%)
If opponent drives forward aggressively to flatten hips and neutralize Kimura system:
- Execute Rolling Kimura → Mount (Probability: 65%)
- Execute Underhook Sweep from Half → Side Control (Probability: 60%)
If opponent pulls arm back and attempts to extract from Kimura grip:
- Execute Kimura Sweep → Armbar Control (Probability: 80%)
- Execute Closed Guard to Omoplata → Omoplata Control (Probability: 50%)
Success Rates and Statistics
| Metric | Rate |
|---|---|
| Retention Rate | 75% |
| Advancement Probability | 68% |
| Submission Probability | 48% |
Average Time in Position: 45-90 seconds before sweep or submission attempt