Flexion

The arm-drag wrist lock applies wrist flexion — bending the wrist toward the inner forearm — using an arm-drag grip as the controlling mechanism. [1,2] The attacker uses a standard arm-drag motion to isolate the opponent's arm, then repositions the grip to fold the wrist inward while controlling the elbow. [1] The arm-drag entry is effective because it simultaneously disrupts the opponent's balance and exposes the wrist for the lock. [1,3] This technique bridges the gap between wrestling-style arm drags and submission-oriented wrist manipulation. [1]

The chin-down wrist lock from seated guard is a flexion-based wrist submission where the attacker, working from a seated or guard position, traps the opponent's hand and forces the wrist into acute flexion by pressing the back of the hand toward the inner forearm. [1] The 'chin-down' designation refers to the specific grip configuration where the attacker's thumbs press down on the back of the opponent's hand, mimicking the motion of pushing someone's chin toward their chest. [1,2] From seated guard, the attacker isolates one of the opponent's posting hands during a pass attempt, cups the hand, and applies downward flexion pressure against the wrist joint. [2] This creates intense stress on the radiocarpal and midcarpal joints, threatening ligament damage and compelling the tap. [2,3]

The figure-four wrist lock from seated guard is a flexion submission where the attacker uses a figure-four grip configuration to isolate and bend the opponent's wrist from a bottom guard or seated position. [1] The attacker grabs the opponent's hand with one hand, then threads the other arm around the wrist to grip their own forearm, creating a powerful figure-four lever. [1,2] This interlocking grip provides superior mechanical advantage compared to simple two-hand grips, as the figure-four structure distributes force efficiently and prevents the opponent from pulling free. [2] From seated guard, the attack typically arises when the top player posts a hand on the mat or the attacker's body during guard passing, exposing the wrist. [2,3] The figure-four lock allows finishing with relatively small movements. [3]

The flexion gooseneck wrist lock bends the wrist forward (toward the inner forearm) while curling the fingers backward, creating a gooseneck shape in the flexion direction. [1,2] The attacker grips the opponent's fingers and palm, pushes the wrist into flexion, and curls the fingers back toward the back of the hand. [1,3] The combined wrist flexion and finger extension creates compound joint stress that is extremely painful. [1] This is commonly used in self-defense, law enforcement wrist control, and as a submission from various grappling positions. [1,4]

The two-on-one wrist lock from seated guard is a flexion submission where the attacker uses both hands to control and bend a single wrist from a seated or guard position. [1] Both of the attacker's hands wrap around the opponent's hand and wrist, with one hand cupping the fingers and the other pressing against the back of the hand, driving the wrist into forced flexion. [1,2] The two-on-one grip provides raw strength advantage and is the simplest wrist lock configuration — no interlocking or figure-four mechanics are needed, just direct bilateral pressure. [2] This attack is commonly opportunistic, catching an opponent's posting hand during a guard pass attempt or when grips are momentarily exposed. [2,3] The simplicity makes it accessible but also easier for the opponent to resist with a strong fist. [3]

The Z-lock wrist lock from seated guard is a flexion-based submission that uses a distinctive Z-shaped arm configuration to hyperextend the opponent's wrist joint from a bottom guard or seated position. [1] The attacker threads their forearm behind the opponent's wrist in a weaving pattern that creates a Z-shape when viewed from the side — the attacker's arm bends at the elbow, wraps behind the opponent's wrist, and the hand hooks back to create three connected segments. [1,2] This configuration generates exceptional leverage because the Z-shape creates two fulcrum points acting on the wrist simultaneously. [2] From seated guard, the Z-lock catches opponents who post carelessly or extend their arms during passing attempts. [2,3] The Z-lock is considered an advanced wrist lock variant due to the precise positioning required to establish the weaving grip. [3]