Rau Drag
The Rau drag in no-gi: Jason Rau's arm-drag-style pass for the knee shield and the stalled knee cut — drag the framing arm across to break the frame and clear to the back or side.
Adapted from the original page. Grappling.Games did not write this. Sources.
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The Rau drag — named for Jason Rau — is an arm-drag applied to passing. It answers the knee shield and the stalled knee cut: when the bottom player’s knee shield frames the passer off, the passer drags the framing arm across the body, breaking the frame and clearing to the back or the side rather than trying to power through the shield.
The knee shield is a frame, and frames are beaten by removing them, not by fighting through them. The drag takes the framing arm out of the equation and pulls the bottom player onto their side, exposing the back. It is the same mechanic as a standing arm drag, repurposed for the most common no-gi half-guard stalemate — which is why it chains naturally into the back take and the kimura trap.
"Inside position on a limb or the body controls the mechanical response of the outside."
See full invariant page → The drag wins the inside line: by clearing the framing arm and pulling the bottom player past their own frame, the passer takes the back-side angle the knee shield existed to deny. Inside position on the dragged side is what the whole technique is buying.
INV-08InvariantPositional Advantage Is the Prerequisite for Submission
"Against a resisting opponent, positional advantage determines whether a submission attempt reaches the finish."
See full invariant page → The drag is not the finish — it is the move that earns the advancing position. Clearing the frame to the back or the side is the positional advance from which the back take or the next attack follows.