High Crotch

What This Is

The high crotch is an intermediate takedown position between the single leg and the double leg. The practitioner’s head is inside — against the opponent’s hip — with one arm cupping under the opponent’s crotch (between their legs) and reaching toward the inner thigh. The other arm controls the outside of the leg. The practitioner is lower than in a standard single leg, with more direct hip access.

The high crotch provides the hip access of a deep single leg combined with an inside arm position that naturally converts to the double leg. It is the position that exists between a single leg shot and a full double leg — useful both as an intentional entry and as a natural position that arises during the scramble when a double leg attempt meets partial resistance.

The two primary exits are: drive through to double leg (extending the inside arm to wrap the second leg) and spin behind to back take (spinning to the rear side of the near leg to achieve a back exposure). The choice between them depends on whether the opponent’s weight is forward (spin) or backward (drive through).

The Invariable in Action

The high crotch achieves maximum hip access — the arm is literally between the opponent’s legs at hip level. The sprawl cannot remove this hip access because the practitioner’s arm is already past the hip. This is why the high crotch is a superior position to the standard single leg for hip access purposes: the arm has passed the opponent’s hip line, not just reached it.

The high crotch requires the same depth of level change as the double leg — the head must reach hip level and the inside arm must get between the opponent’s legs. The level change is deep by definition when the high crotch is properly established.

Entering This Position

From Over-Under Clinch

Level change deeper than a standard single leg entry — the head goes inside to hip level, the near arm reaches between the legs. The underhook creates the initial angle; the deeper level change converts single to high crotch. See: Over-Under Clinch.

From Single Leg — Deeper Level Change

From a standard single leg, push the head inside the opponent’s near leg while the inside arm reaches up between their legs. This converts single leg to high crotch mid-scramble — a deliberate deepening of the level. See: Single Leg Entry.

Control Mechanics

Inside Arm Position

The inside arm cups under the opponent’s crotch — specifically, the hand reaches toward the inner thigh of the near leg. This arm is the hip control. The elbow should point toward the mat, the forearm pressing against the inner thigh, the hand reaching as high as possible toward the hip.

Head Position

The head is against the opponent’s hip — pressed into the hip crease on one side. The head is the third point of control, pressing into the hip while the arms control the leg and crotch. A head that is not pressed into the hip allows the opponent to create the sprawl angle.

Outside Arm

The outside arm wraps around the opponent’s near thigh or grabs the outside of the leg above the knee. This arm prevents the opponent from stepping their near leg away — the inside arm and the outside arm together trap the leg between them.

From This Position

Drive Through to Double Leg

Extend the inside arm from the crotch position across to the opponent’s far leg — this converts high crotch to double leg. Drive the head through, extend the inside arm to wrap the far leg, and complete the double leg finish. This works when the opponent’s weight is backward. See: Double Leg Entry.

Spin Behind — Back Take

From the high crotch, spin to the inside of the near leg — ducking the head under the opponent’s arm and stepping behind. The spin uses the inside position to create a full 180-degree rotation to the opponent’s back. This works when the opponent’s weight is forward (stepping toward the practitioner) — their forward step assists the spin.

Drop to Single Leg

Release the inside arm from the crotch and control only the near leg — converting to a standard single leg from the high crotch. This is the retreat option when the drive-through and the spin are both defended. See: Single Leg Entry.

Common Errors — and Why They Fail

Error: Inside arm too low — grabbing at the knee rather than the crotch. Why it fails: INV-ST02. An inside arm at the knee provides no hip access — the hip is still free for the sprawl. The high crotch is only high if the inside arm reaches the crotch level. Correction: The inside arm must reach between the legs to hip level. If the arm cannot reach the crotch, the position is a standard single leg, not a high crotch.

Error: Head outside the near leg. Why it fails: Head outside the near leg is the single leg position, not the high crotch. The high crotch requires the head inside — against the hip — to achieve the inside position. Correction: Head goes inside the near leg, pressed against the hip. This is the defining structural difference between high crotch and single leg.

Error: Attempting the spin without the opponent’s forward weight. Why it fails: The spin behind is assisted by the opponent’s forward step. Against an opponent with backward weight, the spin runs into them rather than around them. Correction: Read the opponent’s weight — spin on forward weight, drive through on backward weight. The two exits are not interchangeable.

Drilling Notes

• Single-to-high-crotch conversion. From a standard single leg, practise pushing the head inside and reaching the inside arm to the crotch level. The conversion is a deepening motion — same entry, different depth. Twenty reps per side.
• Drive-through to double. From high crotch, practise the inside arm extension to the far leg. Cooperative partner — the finish is the lift-and-dump from the achieved double leg. Build the extension into a full double leg sequence.
• Spin behind. Partner steps forward while the practitioner spins from high crotch to the back. The spin is timed to the step — practise reading the forward weight and executing the spin to coincide with it.

Ability Level Guidance

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