Crotch Ripper

SAFETY: Crotch Ripper targets the Hip flexors, groin muscles, and inner thigh adductors. Risk: Groin strain or muscle tear. Release immediately upon tap.

Play as Attacker Play as Defender

The Crotch Ripper is a compression-based leg lock submission originating from the 10th Planet Jiu-Jitsu system, specifically designed to be executed from the lockdown position in half guard. This technique applies intense pressure to the opponent’s groin, hip flexors, and inner thigh muscles through a combination of lockdown control and strategic knee positioning. Unlike traditional joint locks that target specific joints, the Crotch Ripper creates a painful compression that forces the opponent to tap due to muscular strain rather than joint damage. The submission is particularly effective in no-gi grappling where the lockdown can be secured without gi grips interfering with leg positioning.

The Crotch Ripper represents the offensive potential of the lockdown system, transforming a traditionally defensive half guard position into a legitimate finishing threat. When combined with the Electric Chair sweep, it creates a powerful dilemma where defending the compression opens the sweep and vice versa. This technique requires excellent flexibility, hip control, and precise timing to execute effectively, making it a hallmark of the 10th Planet methodology’s emphasis on unconventional attacks from bottom positions. The submission’s effectiveness depends entirely on the attacker’s ability to maintain lockdown integrity while creating the correct body angle through underhook control.

Category: Compression Type: Groin Compression Target Area: Hip flexors, groin muscles, and inner thigh adductors Starting Position: Lockdown From Position: Lockdown (Bottom) Success Rate: 42%

Safety Guide

Injury Risks:

Injury	Severity	Recovery Time
Groin strain or muscle tear	Medium	2-4 weeks with proper rest
Hip flexor strain	Medium	2-3 weeks
Adductor muscle damage	Medium	3-6 weeks depending on severity
Lower back strain from excessive arching	Low	1-2 weeks

Application Speed: SLOW and progressive - 4-6 seconds minimum to allow partner to recognize pressure and tap

Tap Signals:

Verbal tap (most common due to leg entanglement)
Physical hand tap on mat or opponent’s body
Physical foot tap with free leg
Any distress signal or vocalization

Release Protocol:

Immediately release lockdown figure-four grip
Remove knee pressure from groin area
Straighten attacking leg to remove compression
Allow opponent’s leg to naturally extend and decompress
Do not suddenly jerk or twist during release

Training Restrictions:

Never spike or jerk the submission - apply gradually
Never practice at competition intensity during training
Always communicate with partner about pressure level
Stop immediately if partner shows any sign of discomfort
Avoid practicing on partners with known groin or hip injuries
Never combine with sudden sweeping motions that could increase injury risk

Outcomes

Result	Position	Probability
Success	game-over	55%
Failure	Lockdown	30%
Counter	Half Guard	15%

Attacker vs Defender

	Attacker	Defender
Focus	Execute and finish	Escape and survive
Key Principles	Lockdown security must be established before attempting subm…	Drive weight forward through crossface and shoulder pressure…
Options	6 execution steps	4 defensive options

Playing as Attacker

→ Full Attacker Guide

Key Principles

Lockdown security must be established before attempting submission pressure
Hip angle and underhook control determine submission effectiveness
Knee positioning on the groin creates the compression point
Progressive pressure application allows partner time to tap safely
Opponent’s weight distribution affects submission angle and power
Flexibility in your own hips enhances control and finishing ability
Combination with Electric Chair sweep creates powerful dilemma

Execution Steps

Secure the lockdown position: From half guard bottom, thread your inside leg underneath opponent’s trapped leg and establish the l…
Establish underhook control: Secure a deep underhook on the same side as your lockdown, driving your shoulder into opponent’s arm…
Create the angle and turn to your side: Use your underhook to turn your body toward the underhook side, rotating onto your side rather than …
Position attacking knee on groin: Your free leg (top leg, not the one in lockdown) now becomes the attacking tool. Bring your knee acr…
Extend hips and apply compression: While maintaining lockdown control and underhook, extend your hips forward and slightly upward. This…
Adjust and finish with controlled pressure: Make micro-adjustments to your knee position to find the most sensitive area of opponent’s groin and…

Common Mistakes

Attempting submission without proper lockdown security first
- Consequence: Opponent easily escapes their leg and passes your guard, losing position control
- Correction: Always establish tight lockdown with figure-four secured before attempting any compression. Test lockdown by trying to extend opponent’s leg - if it moves easily, lockdown is not secure enough.
Staying flat on your back instead of creating angle with underhook
- Consequence: No compression is generated because angle is wrong, and opponent easily flattens you to pass
- Correction: Turn onto your side toward underhook, creating 45-90 degrees of rotation. Your shoulder should be off the mat, and you should be looking at opponent’s far hip, not straight up at ceiling.
Placing knee on opponent’s thigh or hip bone instead of groin muscle
- Consequence: No pain compliance achieved, wasted energy, opponent is not threatened by submission
- Correction: Position knee specifically on the soft tissue of groin where inner thigh meets hip. You should feel muscular tissue, not bone. Adjust position based on opponent’s reaction - sensitive area will cause immediate discomfort.

Playing as Defender

→ Full Defender Guide

Key Principles

Drive weight forward through crossface and shoulder pressure to prevent attacker from rotating onto their side - the flat angle kills the compression mechanics
Address the underhook first before worrying about the knee - without the underhook the attacker cannot create the body angle needed for the submission
Never pull your trapped leg straight backward against the lockdown as this actually increases groin exposure and opens Electric Chair entries
Recognize the submission attempt early through tactile cues and shut it down before all three control elements are established simultaneously
Tap early rather than late when caught - compression submissions have no mechanical warning before tissue damage, so ego tapping risks weeks of recovery

Recognition Cues

Attacker begins rotating onto their side toward their underhook while maintaining lockdown - this angle change is the clearest early warning of Crotch Ripper setup
Attacker’s free leg (top leg) begins moving across your body toward your groin area, with their knee tracking toward the crease between your inner thigh and hip
Attacker deepens their underhook grip and pulls you closer while simultaneously extending the lockdown to stretch your trapped leg, creating the dual-control structure needed for the finish
You feel increasing pressure on the soft tissue of your inner thigh and groin as the attacker’s knee makes contact and their hips begin extending forward

Escape Paths

Strip the underhook and drive forward with crossface to flatten attacker, then work systematic lockdown extraction using circular knee motion combined with hip pressure to free trapped leg
Push attacking knee away while simultaneously sprawling hips back to create distance from the compression point, then transition to lockdown top defense and methodical leg extraction
If attacker commits deeply to the side angle, use their commitment against them by stepping over with your free leg to begin a backstep pass, though this requires releasing lockdown pressure simultaneously

Variations

Crotch Ripper to Electric Chair combination: Set up Crotch Ripper compression, and when opponent defends by grabbing your attacking leg or sprawling hips back, immediately transition to Electric Chair sweep by loading their weight onto your hip and rolling them over. This creates a powerful submission/sweep dilemma. (When to use: When opponent is defensive and attempts to prevent knee pressure by controlling your attacking leg)

Crotch Ripper from quarter guard: If opponent begins to extract their leg from half guard but you maintain partial control (quarter guard), you can still establish lockdown on their ankle and attempt modified Crotch Ripper with different angle. Your knee pressure comes from different vector but still targets groin area. (When to use: When transitioning between half guard and opponent’s attempted pass, creating offensive opportunity from defensive scramble)

Double attack with Twister hook threat: From lockdown with underhook, threaten Crotch Ripper while simultaneously working Twister side control entry by getting your outside leg over opponent’s shoulder. This forces opponent to defend multiple attacks, often leaving one open. (When to use: Against experienced opponents who defend Crotch Ripper well - the double threat creates openings)

From Which Positions?

Match Outcome

Successful execution of Crotch Ripper leads to → Game Over

All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.

Safety Guide

Outcomes

Attacker vs Defender

Playing as Attacker

Key Principles

Execution Steps

Common Mistakes

Playing as Defender

Key Principles

Recognition Cues

Escape Paths

Variations

From Which Positions?

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