Octopus Guard
Octopus guard: the deep overhook from a seated position as a back take platform, sweep system, and front headlock entry.
Adapted from InGrappling, Octopus Guard. System Games did not invent this curriculum.
Manage injuries →Position map Connects to 12 positions across 3 relationshipsOpen in the map →12345678910←Enters from
Octopus guard is a seated guard position in which the bottom player wraps a deep overhook around the top player’s near arm, trapping it from below while sitting up chest-to-chest. The arm is captured under the bottom player’s armpit with the elbow deep, the controlling arm circling over and around the trapped arm.
The position earns its name from the way the bottom player’s limbs — both arms, both legs, and the body — wrap and control the top player simultaneously. But the organizing principle is simple: the overhook controls the arm, and the arm controls the side.
Octopus is primarily a back take platform. The overhook creates the arm isolation and the angular advantage needed to step behind the top player without releasing the control. It is also an entry point to the kosoto sweep (tripping the far leg), D’arce and guillotine entries (the arm position naturally creates front headlock angles), and butterfly sweep variations when the legs are in play.
Octopus guard is most commonly reached from half guard or Z-guard when the top player is in a semi-upright position — sitting on their hip or postured up — and has lost awareness of their near arm’s position.
INV-G03Invariant "Connections to the inside of the top player's elbows — or to the outside of the elbows — control the top player's weight distribution and passing options. Losing both connections simultaneously is the guard being passed."
Why it works hereOctopus's deep overhook is an extreme form of the elbow connection — rather than a grip near the elbow, the entire arm is wrapped and trapped from outside. The controlled arm is removed wholesale from the top player's defensive system: it cannot post against the back take, frame against the sweep, or base against the kosoto. While the overhook is alive, the top player has effectively only one arm with which to defend, which is what makes the back-take rotation succeed.
See full invariant page → The octopus overhook is an extreme version of an elbow connection. Rather than a grip at or near the elbow, the entire arm is trapped and controlled from the outside. This eliminates the controlled arm from the top player’s defensive system — they cannot post with it, frame with it, or use it to base against a sweep. It is the most complete single-arm control available from guard bottom.