The Basic Butterfly Sweep is a foundational half-butterfly reversal using the single butterfly hook under the opponent’s free-side thigh, plus an underhook and grip control, to off-balance and roll a forward-pressuring opponent into a dominant top position such as mount.
Sitting at the center of the offensive half-butterfly game, the Basic Butterfly Sweep turns an opponent’s forward pressure and committed base into a clean position reversal. From half butterfly the practitioner keeps the opponent’s trapped leg controlled with the half-guard legs while inserting a single active butterfly hook under the free-side thigh. Combining that one hook with an underhook and grip control, the practitioner elevates and off-balances the opponent to achieve a dominant top position. This sweep is highly effective against opponents who attempt to establish base on top of half butterfly or pressure forward without proper posture. The technique relies on timing, leverage, and the mechanical advantage created by the single butterfly hook rather than pure strength.
When executed properly, the Basic Butterfly Sweep transitions smoothly into mount, side control, or back control depending on the opponent’s defensive reactions. The core mechanic involves creating a 45-degree hip angle toward the free-leg side, driving the lone butterfly hook upward and forward while pulling the opponent’s upper body across your centerline with the underhook and grips. This coordinated action generates rotational force that displaces the opponent’s base regardless of size disparity, while the trapped leg removes their ability to post on the half-guard side.
This is considered an essential technique for all BJJ practitioners and forms the foundation for more advanced half-butterfly and butterfly sweeping systems. It serves as the entry point to understanding how a single inside hook plus half-guard leg control creates mechanical leverage, how the underhook prevents defensive posting, and how timing with opponent weight shifts determines success rate. Mastery of the basic butterfly sweep unlocks the broader half-butterfly attacking system including back takes, deep half entries, and submission chains.
From Position: Half Butterfly (Bottom) Success Rate: 62%
Possible Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | Mount | 62% |
| Failure | Half Butterfly | 25% |
| Counter | Half Butterfly | 13% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute technique | Prevent or counter |
| Key Principles | Maintain active butterfly hooks with heels close to opponent… | Maintain strong upright posture with hips back to prevent fo… |
| Options | 7 execution steps | 4 defensive options |
Playing as Attacker
Key Principles
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Maintain active butterfly hooks with heels close to opponent’s hips for maximum elevation leverage
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Break opponent’s posture and control their upper body through grips before initiating sweep
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Use hip movement to create proper 45-degree angle and mechanical leverage before driving
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Time the sweep when opponent commits weight forward over your hooks
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Drive hooks upward and forward while pulling upper body grips to create unified rotational force
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Follow through with bodyweight to establish top position without disconnecting
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Maintain connection throughout the sweep to prevent escape and ensure consolidation
Execution Steps
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Establish half butterfly position: Secure half butterfly with the half-guard legs trapping opponent’s near leg and a single butterfly h…
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Secure upper body control: Establish strong grip control - typically collar and sleeve grips, double underhooks, or overhook/un…
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Create angle with hip movement: Shift your hips at a 45-degree angle away from the side you intend to sweep toward. This angling cre…
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Drive butterfly hook upward: Explosively extend the butterfly hook on the sweeping side upward and forward, driving through your …
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Roll opponent over your body: Continue driving the butterfly hook while pulling their upper body across your centerline. Fall back…
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Follow through to top position: As opponent rolls over, immediately follow their movement by coming up on your knees and establishin…
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Consolidate position: Once on top, quickly establish control by securing proper weight distribution, controlling their hip…
Common Mistakes
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Attempting sweep without securing proper upper body control first
- Consequence: Opponent easily posts their hands, maintains base, and prevents the sweep while potentially passing your guard
- Correction: Always establish strong collar/sleeve grips or underhooks before initiating the sweep. Pull opponent’s posture down and create forward weight commitment before driving the butterfly hook
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Driving butterfly hook straight up instead of up and forward at an angle
- Consequence: Opponent maintains their base and the sweep lacks the rotational component needed to complete the technique
- Correction: Create hip angle first, then drive the hook on a 45-degree angle - upward and forward - while simultaneously pulling their upper body across your centerline to create rotation
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Keeping hips flat on mat instead of mobile and elevated
- Consequence: Reduced power generation and inability to create proper angle for sweep. The sweep feels heavy and requires excessive strength
- Correction: Keep your hips mobile and slightly elevated off the mat. Think of sitting on your heels with active butterfly hooks rather than lying flat on your back
Playing as Defender
Key Principles
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Maintain strong upright posture with hips back to prevent forward weight commitment over opponent’s hooks
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Fight grips actively to deny the upper body control that enables sweep initiation
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Keep elbows tight and inside to prevent opponent from establishing underhooks or overhooks
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Post immediately and structurally when you feel elevation beginning under your legs
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Control distance to prevent opponent from establishing optimal sweeping range with hooks deep
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Use opponent’s sweep commitment as timing windows for passing entries and counter-pressure
Recognition Cues
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Opponent shifts hips to create a 45-degree angle relative to your centerline, indicating directional sweep preparation
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Opponent pulls aggressively on collar or sleeve grips while simultaneously loading weight onto one butterfly hook
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Opponent breaks your posture forward by pulling your upper body down and bringing your weight over their hips
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Opponent’s heel on the sweeping side drives upward into your inner thigh with increasing pressure
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Opponent drops their shoulder on the sweeping side and begins falling back at an angle while maintaining tight grip connection
Defensive Options
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Post hand firmly on the mat on the sweeping side to create structural brace against rotation - When: As soon as you feel elevation beginning under one leg and upper body pull in one direction - the earlier the post, the more effective
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Sprawl hips back explosively to disengage the hook and create distance, removing the fulcrum point - When: When you feel opponent loading the hook and pulling your upper body forward - sprawl before the hook drive reaches full extension
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Step one leg over the sweeping hook to establish headquarters position and neutralize that hook - When: When opponent commits to angling for the sweep on one side, creating an opening to step the targeted leg over their hook before the drive initiates
Position Integration
The Basic Butterfly Sweep is a cornerstone technique within the broader butterfly guard system and serves as an essential building block for open guard development in BJJ. It integrates seamlessly with multiple guard positions and attack sequences. From standing, practitioners can pull butterfly guard directly or transition from closed guard by opening the legs and establishing hooks. The butterfly sweep connects naturally with other butterfly guard attacks including arm drags to back takes, guillotine chokes, and kimura attacks - creating a dilemma-based attack system where defending one threat opens others. When the sweep is defended, smooth transitions exist to deep half guard, single leg X-guard, and X-guard, allowing continuous offensive pressure. The technique also serves as a critical component in systematic butterfly guard approaches, which emphasize the combination of sweeps, submissions, and back takes from butterfly position. Understanding the basic butterfly sweep provides the foundation for more advanced variations including the hook sweep, elevator sweep, and butterfly sweep to back take sequences that define high-level butterfly guard play.