Shoulder Lock Guide
☰Contents
BJJ shoulder locks: kimura, americana, omoplata — mechanics comparison, entries from every position, and combining them into a system.
The three shoulder locks form a complete attacking system targeting the shoulder joint from different angles — mastering all three and their connections gives you options from every position.
Kimura (Double Wrist Lock)
The kimura attacks the shoulder in internal rotation. Entry: grip the wrist with one hand and figure-four with the other arm, create leverage by pushing the hand toward the back. Available from: guard bottom (hip escape to angle), side control (step over the head), north-south, half guard. Gordon Ryan uses the kimura as a control system for back takes and sweeps, not just as a submission.
Americana (Key Lock)
The americana attacks the shoulder in external rotation — the opposite of the kimura. Entry from mount or side control: push the arm into an L-shape (hand by the ear), figure-four the wrist and elbow, drive the elbow down to the mat. Key: keep the elbow pinned to the mat and use your body weight rather than arm strength to finish.
Omoplata
The omoplata attacks the shoulder from the guard bottom using leg leverage: hip escape to create angle, swing your leg over the shoulder (as if for a triangle but continue rotating), lock the leg tight against their side, and sit up while driving your knee forward. The omoplata is both a submission and a sweep/back take platform.
Kimura vs. Americana vs. Omoplata
Kimura: internal rotation, best from guard bottom or north-south. Americana: external rotation, best from top positions. Omoplata: rotation + pressure, best from guard bottom. Together they form a 360-degree shoulder attack system where each technique creates transitions to the others.
Shoulder Lock Combinations
The key combinations: kimura to back take (if they roll to escape), americana to mounted triangle (if they move their arm), omoplata to triangle (if they posture), omoplata to back take (if they roll forward). Each shoulder lock should be treated as an entry to the next technique.
Frequently Asked Questions
Yes — shoulder locks apply direct pressure to the shoulder joint and rotator cuff. Always tap before feeling pain (not at the point of pain). Apply slowly in training. The kimura especially can cause injury if applied quickly.
The kimura trap is a modern system (popularized by IBJJF/ADCC competitors) where you use the kimura grip not just for the submission but for control: using it to sweep, take the back, maintain position, and threaten multiple attacks simultaneously.
Yes, the omoplata is legal at all belt levels in IBJJF gi and no-gi competition. It is considered a standard shoulder joint lock.