Butterfly Sumi Gaeshi
Butterfly sumi — sacrifice throw from butterfly guard: backward fall, hook lift, chest connection. Weight drives the reversal.
Adapted from InGrappling, Butterfly Sumi Gaeshi. System Games did not invent this curriculum.
Manage injuries →Position map Connects to 4 positions across 2 relationshipsOpen in the map →1234←Enters from
The butterfly sumi gaeshi is a sacrifice reversal where the bottom player intentionally falls backward while pulling the top player into them, using a butterfly hook to elevate and a chest or shoulder connection to control the direction of the throw. The bottom player’s controlled backward fall — combined with the hook’s lift and the upper body clamp — creates an unavoidable rotation that carries the top player overhead and lands them on their back.
The word “sacrifice” is precise here: the bottom player voluntarily gives up their sitting position to generate the rotational force needed to bring the top player over. The throw is not a slow tipping motion — it is a fast, committed fall with a body that is already connected to and controlling the opponent.
This is the canonical page for sumi gaeshi from the guard system. The same throw appears from seated guard, butterfly half guard, and the pinch headlock position — but the mechanics are identical across all of them. Practitioners who learn this once from butterfly guard will recognise and apply it immediately when the same structural conditions appear in other guard positions.
The throw exits to mount in the standard case. When the top player attempts to avoid by rolling, a back exposure opens — and the bottom player can convert the sweep to a back take rather than following to mount.
INV-SC02Invariant "The opponent's reaction to a bottom player gaining height creates structural openings. Their force directed downward opens the conditions for sweeps, leg entries, and takedowns."
Why it works hereSumi gaeshi is timed against a forward-moving top player — their downward and forward pressure into the bottom player's chest is the energy the throw absorbs and redirects. The bottom player does not resist that pressure; they connect and fall in the same direction the top player is already travelling. Attempting the throw against a stationary or retreating opponent removes the input energy and the rotation never completes.
See full invariant page → Sumi gaeshi is a textbook example of downward pressure creates offence timing. The top player advancing forward — pressing into the guard, pushing for a pass — creates the precise condition the throw requires. Their downward and forward force is not countered; it is accepted and redirected. The bottom player does not resist the advance. They connect, pull, and fall in the same direction the top player is already moving. The throw converts the top player’s own forward energy into the rotation that sweeps them.