KNEE CUT PASS

The knee cut pass is the single most-used guard pass at every level of modern competitive jiu jitsu. It works in the gi and no-gi, it functions against beginners and against world champions, and unlike many guard passes its mechanics scale up rather than down — the same movement that finishes a sweep at white belt finishes a sweep at the absolute final of the Mundial. Its dominance is the product of a simple structural insight: the most efficient way to pass guard is not to go around the legs but through them, by slicing one knee across the inside of the opponent's far leg while pinning their near leg with shoulder pressure.

The entry begins from a partial half guard or a pummeled open guard. The passer cups the back of the bottom player's same-side knee with one arm, drives their own near knee across and inside the bottom player's near thigh, and brings their head to the far side of the bottom player's near shoulder. The passing knee slides across the inside line of the bottom player's far leg, the rear leg posts wide to prevent being underhooked, and the chest stays low and heavy across the bottom player's collarbones. As the passing knee crosses, the back leg drops to the mat and the passer arrives in tight side control with the cross-face and underhook already in place.

What makes the knee cut so effective is that it converts the bottom player's most common defensive reaction — framing on the passer's biceps to stop the pressure — into the pass itself. The knee slides under the frame, the head pins the frame against the mat, and the bottom player's hands are forced to give up the frame to defend the shoulder pressure. Once the knee has crossed the centerline, the pass is almost impossible to stop without giving up the back, which is why elite competitors who specialize in the knee cut, like Lucas Lepri and Tainan Dalpra, routinely score on opponents who know exactly what is coming.

The knee cut became the dominant pass of the modern era after the Mendes brothers and Atos refined it for high-level berimbolo and 50-50 defense in the early 2010s. Today it is the foundational pass taught alongside the torreando and the over-under in every serious competition program, and it is the pass most commonly used at the top of the ADCC and IBJJF brackets.