D'Arce Arm Thread Mechanics

Isolates the inside-shoulder arm thread for the D'Arce (arm-in guillotine) from front headlock control. Partner is cooperative with one arm extended…

Elevated Risk This drill loads joints at competitive intensity. Run only with practitioners experienced in the relevant submission and at communication pace.

The person applying the technique is responsible for releasing immediately.

Communicate before drilling. Know your partner's experience level with this position.

Do not train this technique while fatigued or in live rolling without established mat culture.

The D’Arce choke (arm-in guillotine) is entered when the opponent’s near arm is extended or trapped during front headlock control — the arm is inside the choking loop, increasing the mechanical efficiency of the choke compared to a standard guillotine. The arm thread is more complex than the standard guillotine entry: the choking arm must pass under the shoulder, not just across the throat, and the shoulder must be trapped inside the arm loop.

The difficulty is threading under a structure (the shoulder girdle) rather than across an open surface (the front of the throat). Students who attempt to thread too high get the loop around the neck only. Students who thread too low — at chest level — cannot close the loop back to the neck. The correct path is exactly at the shoulder crease: under the armpit and up through to the throat.

Front headlock is established. The bottom player is turtled with their near arm (the arm closest to the top player’s threading side) extended slightly outward — not tucked. This represents a moment when the opponent’s arm is available. The top player stands ready with the encirclement grip.

From the front headlock, release the hand connection. Identify the near shoulder on the threading side.

Drop the chin-arm’s elbow toward the mat and simultaneously drive the hand and forearm under the bottom player’s near armpit — threading between the arm and the torso. The forearm moves forward and upward through the channel created by the shoulder joint and the ribcage.

As the forearm passes through the shoulder crease, rotate the palm upward. The forearm should now be sitting inside the shoulder — between the shoulder and the neck — with the hand reaching past the far side of the throat.

Bring the far (free) hand to connect with the threading hand on the far side of the throat. The standard connection for D’Arce is a wrist-over-wrist or palm-over-palm grip, with the threading arm’s bicep driving against the side of the throat and the near shoulder trapped inside the arm loop.