3/4 Armbar Escape
3/4 armbar escape — the bent arm that beat the armbar is the entry. Elbow-tuck denial, grip interlace and stack back in, hitchhiker rotation as the wrist turns.
Adapted from InGrappling, 3/4 Armbar Escape. System Games did not invent this curriculum.
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The 3/4 armbar attacks a bent elbow — around ninety degrees — by compressing the inside of the joint rather than extending it. For the attack, see 3/4 Armbar. It is entered from the standard armbar position, at the moment the defender bends their arm to survive.
Your armbar defence is the entry. That is the whole reason this exists as a separate problem. Bending the arm is the correct answer to a straight armbar and it is not a resolution — a practitioner who only knows the straight armbar releases when you bend; one who knows the 3/4 converts. The defender who has just done the right thing and relaxed is the defender this catches.
The mechanism changes with the conversion, and so does what you are feeling for. A straight armbar loads the back of the elbow in extension. The 3/4 compresses the medial structures on the inside of the joint with the arm folded, which arrives differently and does not announce itself the way a hyperextension does. It is threatened from mount only, and unusually for a mount attack the attacker spends the position to get it — a failed 3/4 armbar does not leave them mounted.
Elevated Risk3/4 Armbar (Defence) is an elevated risk technique. The 3/4 armbar loads the medial elbow structures through compression with the joint held at roughly ninety degrees, rather than loading the posterior capsule through extension. Compression at a folded joint gives a different and later signal than hyperextension — there is no sensation of an arm being straightened past its limit, which is the cue most defenders are calibrated on. The submission also arrives immediately after a successful armbar defence, so the defender is frequently relaxing at the moment it applies. Serious injury can occur Seconds, and the warning does not resemble a straight armbar's — expect no sense of extension..
If you are new to this technique: read this section before anything else. Understanding the danger is part of understanding the technique.
The person applying the technique is responsible for releasing immediately.
Communicate before drilling. Know your partner's experience level with this position.