Reguard from Half Butterfly

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The Reguard from Half Butterfly is a guard retention technique where the bottom player transitions from the asymmetric half butterfly configuration to full butterfly guard by freeing the trapped leg from the half guard entanglement and inserting it as a second butterfly hook. Half Butterfly provides a strong sweeping platform with its single hook, but full butterfly guard offers substantially more offensive versatility through bilateral elevation, wider sweep angles, and direct access to X-Guard entries and arm drag back takes. The reguard capitalizes on this positional upgrade by converting a partially compromised guard into a fully active one.

Strategically, the reguard functions as both a guard retention tool and a positional reset. When the top player begins neutralizing the half butterfly position through crossface pressure or underhook control, attempting to force sweeps from a deteriorating position wastes energy and invites passing. Instead, the reguard extracts the trapped leg and restores the dual-hook configuration before the top player can consolidate passing advantages. The technique is particularly effective after failed sweep attempts, when the opponent’s defensive reaction creates weight shifts and momentary loosening of the half guard trap that facilitate extraction.

The mechanical challenge lies in creating sufficient space for leg extraction without surrendering the connections that prevent passing. The existing butterfly hook serves as the primary anchor throughout the transition, maintaining elevation pressure that keeps the top player’s weight honest while the bottom player shrimps and pummels the trapped knee free. The entire sequence must flow continuously from hip escape through extraction to hook insertion, as any pause between steps creates a window where the bottom player has neither full butterfly guard nor secure half butterfly, leaving them vulnerable to passing attacks.

From Position: Half Butterfly (Bottom) Success Rate: 55%

Possible Outcomes

Result	Position	Probability
Success	Butterfly Guard	55%
Failure	Half Butterfly	25%
Counter	Flattened Half Guard	20%

Attacker vs Defender

	Attacker	Defender
Focus	Execute technique	Prevent or counter
Key Principles	Maintain active butterfly hook pressure throughout the entir…	Maintain constant squeeze pressure on the trapped leg throug…
Options	7 execution steps	4 defensive options

Playing as Attacker

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Key Principles

• Maintain active butterfly hook pressure throughout the entire reguard sequence as your primary connection and defensive anchor against passing

• Establish frames on the trapped-leg side before attempting extraction to prevent the opponent from collapsing space during the movement

• Use hip escape mechanics to create the extraction angle rather than yanking the leg free through the opponent’s squeeze

• Time the extraction with opponent weight shifts—initiate when they commit pressure forward or laterally, loosening the trapped leg

• Execute the sequence as one continuous flowing movement without pausing between leg extraction and hook insertion

• Immediately threaten a butterfly sweep after consolidation to prevent the opponent from settling into defensive posture against your new guard

Execution Steps

• Assess opponent’s weight distribution and pressure angle: Before initiating the reguard, read the top player’s weight distribution. Determine if they are driv…

• Establish frame on the trapped-leg side: Place your forearm or palm against the opponent’s shoulder, bicep, or neck on the trapped-leg side. …

• Drive butterfly hook upward to displace weight: Simultaneously with or immediately after establishing the frame, drive your butterfly hook upward in…

• Execute hip escape to create extraction angle: Shrimp your hips away from the trapped-leg side while maintaining frame pressure and butterfly hook …

• Pummel trapped knee through the gap using circular path: With the angle created, draw your trapped knee toward your own chest first using hip flexion, cleari…

• Extract foot and redirect immediately to hook position: Complete leg extraction by pulling the foot free from the half guard entanglement and redirecting it…

• Consolidate full butterfly guard with offensive posture: Sit up into proper butterfly guard posture with shoulders elevated, core engaged, and both hooks gen…

Common Mistakes

• Letting the butterfly hook go passive while focusing entirely on extracting the trapped leg

  • Consequence: Without active hook pressure, the opponent can freely settle weight, advance their pass, or drive crossface without resistance. The hook is the only thing preventing complete positional collapse during extraction.
  • Correction: Maintain constant upward drive through the butterfly hook throughout the entire reguard sequence. The hook is simultaneously your defensive anchor, your weight displacement tool, and your immediate offensive threat once the second hook is inserted.

• Attempting direct leg extraction without first creating hip angle through shrimping

  • Consequence: The opponent’s squeeze and body weight directly block extraction from a flat position, wasting energy and telegraphing the attempt without creating viable space for the knee to clear
  • Correction: Always create the hip angle first through a committed shrimp or hip bump. Extraction becomes dramatically easier at forty-five degrees because the circular pummeling path opens around the opponent’s squeeze.

• Pausing between leg extraction and second hook insertion, leaving a gap with only one hook

  • Consequence: The pause creates a window where you have reduced guard structure—one hook is insufficient to prevent passing—and the opponent can initiate knee slice or smash pass before butterfly guard is established
  • Correction: Treat extraction and insertion as one continuous motion. Drill the redirect so that the freed foot moves directly into hook position with zero hesitation or adjustment.

Playing as Defender

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Key Principles

• Maintain constant squeeze pressure on the trapped leg through proper knee and hip alignment to block the circular pummeling path

• Establish crossface control to limit the bottom player’s ability to shrimp and create the extraction angle

• Distribute weight to prevent the hip escape that opens the extraction path, keeping hips low and driving forward

• Recognize reguard attempts early through tactile cues and increase defensive pressure or initiate counter-passing immediately

• Capitalize on space created during failed reguard attempts by advancing passing position rather than merely resettling

• Neutralize the butterfly hook side simultaneously to prevent the bottom player from using elevation to create extraction space

Recognition Cues

• Bottom player begins shrimping or turning hips away from the trapped-leg side rather than into you for sweeps

• Frame pressure increases against your shoulder or neck on the trapped-leg side, signaling space creation attempt

• Butterfly hook drives upward with increased intensity as a displacement tool rather than a sweep-oriented elevation

• Trapped knee begins circular motion toward the bottom player’s chest rather than pushing outward for sweep leverage

• Bottom player’s upper body grips shift from pull-oriented sweep positioning to push-oriented frame positioning

Defensive Options

• Drive crossface and heavy shoulder pressure to flatten bottom player during hip escape - When: The moment you feel the bottom player beginning to shrimp or elevate their shoulder on the trapped-leg side

• Tighten squeeze on trapped leg and drive hips forward to seal the pummeling path - When: When you detect the trapped knee beginning its circular pummeling motion toward the bottom player’s chest

• Time a knee slice pass through the space created during the extraction hip escape - When: When lateral space appears from the bottom player’s hip escape and their frame is committed to extraction rather than blocking passes

Variations

Elevator Reguard: Uses an aggressive butterfly hook elevation to lift the opponent’s weight off the trapped leg before extracting. The bottom player drives the hook upward explosively while simultaneously pulling the trapped knee toward the chest, exploiting the momentary weightlessness to free the leg. Requires strong hip flexor engagement and precise timing between the elevation and extraction. (When to use: When the opponent is applying heavy forward pressure that restricts lateral hip escapes but loads weight onto the butterfly hook side)

Frame and Shrimp Reguard: Classical hip escape approach where the bottom player establishes a strong forearm frame on the opponent’s shoulder or neck on the trapped-leg side, then executes a sharp shrimp to create lateral space for the knee to pummel through. The frame prevents the opponent from following the shrimp and closing the extraction window. Most reliable variation with widest applicability. (When to use: When the opponent maintains balanced pressure without extreme forward commitment, allowing space for lateral hip escape mechanics)

Kick-Free Reguard: An explosive variation where the bottom player uses a sharp hip extension and leg kick to break the half guard grip on the trapped leg, immediately redirecting the freed foot into butterfly hook position. Bypasses the need for a traditional shrimp by using explosive force along the extraction line. Higher risk but effective against loose half guard control. (When to use: When the opponent’s half guard squeeze is loose or their attention is directed toward defending the butterfly hook rather than maintaining the leg trap)

Position Integration

The Reguard from Half Butterfly occupies a critical node in the bottom player’s guard retention network, connecting the half butterfly position back to the more versatile full butterfly guard. Within the half guard family, it represents the preferred recovery pathway when primary half butterfly attacks are being shut down, restoring access to the complete butterfly attack chain including bilateral sweeps, X-Guard transitions, arm drag back takes, and guillotine entries. This technique also functions as a defensive circuit breaker—when the top player begins consolidating passing advantages from half butterfly top, the reguard interrupts their progression by upgrading the bottom player’s guard configuration rather than allowing a slow positional deterioration toward flattened half guard or side control.

Related Techniques

• Half Butterfly - Source position where the technique begins

• Butterfly Guard - Target position providing dual-hook sweeping platform upon successful reguard

• Flattened Half Guard - Counter outcome when opponent capitalizes on extraction space to advance pass

• Half Butterfly Sweep - Primary sweep from same position whose defense can create reguard timing windows

• Half Butterfly to Dogfight - Alternative transition from same starting position when reguard is blocked

• Deep Half Guard - Alternative recovery target when forward pressure makes reguard impractical

• Pass Half Butterfly - Opponent’s primary goal that the reguard aims to prevent

• Knee Shield Half Guard - Alternative guard frame to recover if butterfly hook is compromised during attempt

• Reguard from Butterfly Half Guard - Analogous technique from the related butterfly half guard position

• X-Guard - Downstream transition available from successful butterfly guard recovery