Scorpion Sweep

What This Is

The scorpion sweep is the primary sweep exit from the scorpion position. It is one of two attacks that together form the scorpion dilemma — the other being the scorpion back take. Understanding either technique in isolation misses the structural point: the dilemma is what gives both attacks their value.

The scorpion position is the half guard configuration where the bottom player has completed a lower leg shift — the lower trapping leg has been repositioned so its foot hooks behind the top player’s near knee — and the underhook is established on the same side. This creates a connected two-point attack: the knee hook targets the bottom of the top player’s near-side base, and the underhook controls the top of the top player’s near-side body. With both points connected, the top player’s near side is bracketed top and bottom. Driving both toward the sweep direction simultaneously tips them over.

This page covers the sweep execution. See Scorpion to Back Take for the companion attack when the top player defends the sweep, and Scorpion Position for the positional context and how to reach this configuration.

The Invariable in Action

The scorpion sweep forces a hand post on the underhook side. When both the knee hook and underhook drive toward the sweep direction, the top player must reach the hand on that side to the mat to stop falling. The moment that hand posts, the top player’s weight shifts over it — the bottom player comes up on top of the posting arm, establishing side control. The hand post is not the problem for the top player; it is the bridge the bottom player crosses to reach top position.

The scorpion position requires hip mobility to maintain — the lower leg has been shifted and the bottom player is on their side. When the top player presses the bottom player flat, the scorpion position collapses: the lower leg hook loses its angle and the underhook loses its leverage. The sweep is available while the bottom player’s hip is elevated and mobile. Preserving the side-lying position is the same as preserving the sweep threat.

The knee hook targets the top player’s near knee — the primary support point in their kneeling half guard position. The underhook controls the upper body direction. Together, the knee hook removes the support and the underhook determines the fall direction. The top player tips because one support point is gone, not because they are overpowered. This is why the scorpion sweep works against larger training partners — it is not a strength technique.

Setup and Entry

From the Scorpion Position

The scorpion position is reached from Z-guard or half guard via the lower leg shift — see the Lower Leg Shift Sweep page for the entry mechanics. Once in the scorpion configuration — lower leg hooked behind the near knee, underhook established — the sweep is available immediately.

To execute the sweep: the underhook arm lifts and drives toward the sweep side, carrying the top player’s upper body in that direction. Simultaneously, the lower leg hook drives backward — toward the bottom player’s own head — against the near knee, displacing the support point. Both drives happen at the same moment. The combined motion brackets the top player’s near side and tips them over.

As the top player begins to fall, the bottom player begins to rise — hip escape toward the sweep side, coming onto the knee, following the top player into side control. The pattern is the same as the lower leg shift sweep because the scorpion sweep IS the lower leg shift sweep executed from the established scorpion position. The difference is one of framing: the lower leg shift page describes the technique as a continuous motion from half guard; this page describes the same execution from the established position — with the dilemma context that the scorpion position creates.

The Scorpion Dilemma

The scorpion position forces a binary response from the top player, and both responses give the bottom player what they want.

If the top player holds their position — keeping their hips forward and maintaining the near knee’s contact with the mat — the bottom player drives the sweep. The near knee hook removes the base, the underhook tips the body, and the top player goes to their side. The sweep lands.

If the top player ducks their head down and drives their hips upward to create space and defend — a natural response when someone is being turned over — they expose their back. The ducking motion lifts the hips, turns the torso, and presents the back directly to the bottom player. The bottom player releases the sweep mechanics and transitions to the back take instead.

The dilemma is not just strategic; it is structural. The same position creates both problems simultaneously, and the top player cannot eliminate both with a single defensive move. The bottom player’s job is to present the threat of both and follow whatever the top player gives.

Practitioners who only train the sweep are training half the position. Read the companion page — Scorpion to Back Take — as the other half of this dilemma. Both should feel equally natural.

Completing the Sweep

The scorpion sweep completion requires the bottom player to follow the top player’s fall actively — not passively. Many practitioners execute the drives correctly, feel the top player begin to tip, and then pause. The pause lets the top player post a hand, stabilise, and return. The sweep must be chased.

As the top player tips to their side, the bottom player is already moving: hip escape toward the sweep side, swinging the free leg through, coming to a knee. The bottom player arrives on top as the top player lands, not after. If the bottom player waits for the top player to be fully on the mat before starting to rise, the top player has already begun to recover.

The finish position is typically side control on the underhook side. The underhook arm that drove the sweep is now in position to control the top player’s near arm from the top — the underhook becomes a top-side underhook as the positions invert. Maintaining the underhook through the sweep and into top side control creates a seamless transition.

Common Errors — and Why They Fail

Defence

The scorpion position creates a dilemma that does not have a clean resolution. Both defences lead to danger — the question is which danger the top player prefers.

Flatten the bottom player before the position is established: The most effective defence is preventing the scorpion configuration from being reached. If the top player can flatten the bottom player’s hip before the lower leg shift completes, the knee hook position is not achieved and the scorpion position does not exist. This requires early recognition of the lower leg shift attempt.

Clear the knee hook: If the lower leg hook is behind the knee but the drives have not started, the top player can step the near leg forward and through, clearing the hook before it can drive. Timing-dependent — must happen before the drive begins.

Lean away from the sweep direction: Leaning away from the underhook side makes the tip harder by moving the top player’s weight in the opposite direction. This partially addresses the sweep. However, leaning away from one side creates an angle toward the other — the back take option becomes more accessible when the top player leans away.

Against a bottom player who knows both exits, the top player’s best defence is prevention — not resolution once the position is established.

Drilling Notes

Ecological approach

Flow spar from the scorpion position with the bottom player hunting either sweep or back take and the top player defending actively. Both exits should be present in the same round — the bottom player should not pre-plan which one they are going for. The top player’s first movement is what determines the exit. Run three-minute rounds, switch roles, and note which defence the partner favours — then explore what that exposes.

Systematic approach

Phase one: drill the sweep drives from established scorpion position with a cooperative partner — 10 reps, focus on simultaneous knee hook and underhook drive. Phase two: drill the rise to top position from the tip — 10 reps. Phase three: drill the full sweep to side control — 10 reps. Phase four (separate session): drill the back take transition when the top player ducks — 10 reps. Do not combine phases three and four until both feel clean individually. See also the drilling notes on the Scorpion to Back Take page.

Ability Level Guidance

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