Passing the Half Butterfly guard requires systematic neutralization of the butterfly hook’s lifting mechanics while maintaining enough upper body pressure to prevent guard recovery. The butterfly hook in half butterfly creates a powerful elevation tool that the bottom player uses to generate sweeps and off-balance the passer. The top player’s primary challenge is removing this hook’s effectiveness without sacrificing the crossface or underhook control needed to prevent the bottom player from recovering full butterfly guard or transitioning to deep half.
The pass typically involves driving weight forward and low to reduce the hook’s leverage, establishing crossface or underhook dominance, and then methodically clearing the hook through hip positioning, leg weaving, or smash mechanics. Unlike passing standard half guard where the primary obstacle is extracting the trapped leg, passing half butterfly demands simultaneous management of the trapped leg retention and active butterfly hook threat. This dual-threat structure from the bottom player makes the pass technically demanding and requires precise timing in weight distribution shifts.
Strategically, Pass Half Butterfly sits at a critical juncture in modern guard passing chains. Many passing sequences through butterfly-based guards funnel into this position when one hook has been cleared but the second remains active. The passer who understands how to read the bottom player’s hook engagement and respond with appropriate weight shifts and angle changes can reliably convert this transitional moment into a completed pass. Failure to address the hook systematically often results in sweep attempts that catch even experienced passers off guard.
From Position: Half Butterfly (Top) Success Rate: 55%
Possible Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | Side Control | 55% |
| Failure | Half Butterfly | 30% |
| Counter | Half Guard | 15% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute technique | Prevent or counter |
| Key Principles | Drive chest weight forward and hips low to shift the load aw… | Maintain active butterfly hook engagement with constant upwa… |
| Options | 7 execution steps | 4 defensive options |
Playing as Attacker
Key Principles
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Drive chest weight forward and hips low to shift the load away from the butterfly hook’s optimal leverage point near the thigh
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Establish crossface before attempting to clear the hook, as head control prevents the bottom player from creating sweep angles
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Neutralize the hook through hip positioning and weight distribution rather than trying to physically strip it with your hands
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Maintain constant forward pressure throughout the pass sequence to prevent the bottom player from reloading the hook with hip elevation
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Control the underhook battle on the butterfly hook side to prevent the bottom player from establishing the primary offensive grip
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Complete the pass by sliding the knee through only after the hook has been rendered ineffective through proper weight placement
Execution Steps
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Establish crossface control: Drive your forearm or bicep across the bottom player’s face and neck, turning their head away from y…
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Drop weight forward onto chest: Shift your center of gravity forward so your chest drives heavily into the bottom player’s upper bod…
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Widen base and sprawl hips: Spread your knees wide to create a stable platform that resists the bottom player’s off-balancing at…
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Neutralize the butterfly hook: Using hip pressure and leg positioning, drive the butterfly hook toward the mat by angling your hip …
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Block hip and prevent reguard: With your near-side hand, block the bottom player’s far hip to prevent them from shrimping away or i…
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Slide knee through to complete pass: Once the hook is neutralized and hip control is established, slide your trapped knee through the bot…
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Consolidate side control: Immediately establish perpendicular chest-to-chest contact with your hips heavy on the bottom player…
Common Mistakes
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Attempting to strip the butterfly hook with hands instead of neutralizing it through weight and hip positioning
- Consequence: Removes a control point from the upper body, allowing the bottom player to create frames or establish underhook while the passer is occupied with the leg
- Correction: Neutralize the hook through body mechanics: drive hips low, shift weight forward onto chest, and collapse the hook’s angle through hip pressure rather than manual stripping
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Keeping weight too high on the torso without hip-to-hip connection
- Consequence: Butterfly hook retains full mechanical advantage and can generate powerful elevation for sweeps, making the pass nearly impossible to complete
- Correction: Drive hips low and maintain hip-to-hip contact on the passing side while keeping chest pressure forward on the upper body
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Rushing the knee slide through before the butterfly hook is fully neutralized
- Consequence: Bottom player uses the remaining hook leverage to elevate and sweep during the vulnerable transition moment when the passer’s base is narrowest
- Correction: Confirm the hook is fully ineffective by testing with a slight weight shift before committing to the knee slide. If the hook can still generate any lift, continue the neutralization phase
Playing as Defender
Key Principles
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Maintain active butterfly hook engagement with constant upward pressure to prevent the passer from settling their weight into the neutralization position
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Fight aggressively for the underhook on the hook side as it provides the primary platform for sweeps and prevents the passer from establishing crossface dominance
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Never allow your back to flatten completely to the mat, as staying on your side preserves the hip mobility needed for both sweeps and guard transitions
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Recognize the pass attempt early through weight distribution changes and respond before the passer completes their setup rather than reacting after control is established
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Create constant offensive threats through sweep attempts and angle changes to force the passer into defensive reactions that interrupt their passing sequence
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Have predetermined escape routes to deep half, dogfight, or full butterfly guard ready to execute when hook retention becomes untenable
Recognition Cues
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Passer begins driving chest weight forward and downward onto your upper body with increased pressure intensity, signaling the start of hook neutralization
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Passer’s hips drop noticeably lower and heavier on your butterfly hook side, reducing the space available for hip elevation and sweep mechanics
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Passer establishes or strengthens crossface control, turning your head away and limiting your ability to create the angle needed for effective hook engagement
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Passer widens their base by spreading knees apart, creating a more stable platform designed to resist your sweep attempts during the pass
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Passer’s near-side hand moves to block your far hip, indicating they are preparing to prevent your shrimping and guard recovery options
Defensive Options
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Immediate butterfly hook elevation and sweep attempt before passer’s weight settles - When: Early in the pass sequence when you first recognize the passer shifting weight forward but before crossface and hip pressure are fully established
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Frame against shoulder and shrimp to maintain space and reload butterfly hook - When: When the passer has begun settling weight but has not yet completed hook neutralization, and you need to create space to re-engage the hook
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Transition to deep half guard by diving underneath the passer - When: When the passer has established heavy forward pressure that makes butterfly hook retention impossible, but has committed their weight forward enough to create space underneath
Position Integration
Pass Half Butterfly occupies a critical position in the guard passing hierarchy, serving as the bridge between initial butterfly guard engagement and achieving a dominant top position. This technique connects directly to the broader half guard passing system, as many knee slice and pressure pass sequences route through half butterfly when the bottom player retains one hook during the pass attempt. Mastery of this pass is essential for any systematic top game, as butterfly-based guards are among the most common defensive structures in modern competition. The pass chains naturally with leg weave passes, smash passes, and backstep sequences, creating a comprehensive passing network that accounts for the bottom player’s defensive reactions and guard recovery attempts.