BUTTERFLY SWEEP

The butterfly sweep is the canonical reversal from butterfly guard and the technique that defines the seated open-guard game in modern no-gi competition. By hooking both feet under the opponent's thighs from a seated guard position and using one hook to elevate while the upper body pulls them across the centerline, the bottom player generates a powerful diagonal toss that flips the opponent onto their side, with the bottom player riding the momentum into mount or knee on belly.

The entry begins from butterfly guard with both feet hooked under the opponent's thighs and an underhook secured on one side. The free hand grips the wrist or sleeve of the opponent's underhooked-side arm, controlling that limb from doing useful defensive work. The bottom player rotates onto the same-side hip, falls toward the underhooked side, and elevates the underhooked-side foot to lift the opponent's leg. The combined diagonal pull of the underhook, the wrist grip, and the elevator hook flips the opponent in the direction of the lift, and the bottom player arrives in mount or in a passing position depending on the angle of the finish.

What makes the butterfly sweep particularly important is its dominance in no-gi contexts where the lack of collar/sleeve grips eliminates many of the gi-specific sweep options. Marcelo Garcia built his entire no-gi competition career around the butterfly guard and the butterfly-to-back-take chain that the position enables, and his finishes against larger opponents at ADCC across the 2005, 2007, and 2009 tournaments remain the modern reference for how the technique scales against size disadvantage.

Defensively the butterfly sweep is countered by establishing strong cross-face pressure to prevent the bottom player from rotating onto the hip, by maintaining a wide knee base to defend the hook elevation, and by underhooking back to neutralize the upper-body grip advantage. In gi competition the sweep remains a viable but less dominant option compared to its no-gi expression because the gi gives the top player more defensive grips.