INSIDE HEEL HOOK

The inside heel hook is the highest-percentage submission in modern no-gi grappling and the strategic centerpiece of the Danaher Death Squad / New Wave / B-Team pedagogical revolution of the late 2010s. The technique attacks the knee joint by twisting the captured heel laterally (rotating the foot away from the body's midline), which produces structural failure of the knee's ligamentous complex — primarily the ACL and MCL — and forces a submission tap, often without warning.

The mechanics begin from the saddle (4-11 / honey hole) position with the attacker's legs entangled around one of the opponent's legs. The attacker grips the opponent's foot with both hands, palms facing inward, with the inside of the opponent's heel pressed into the attacker's body (typically the lower abdomen or hip crease). The finish comes from rotating the captured foot laterally (toes pointing away from the opponent's midline) while simultaneously squeezing the entangled legs to compress the opponent's knee in the opposite direction. The combined rotation produces force at the knee that exceeds the ligaments' capacity, producing a knee-failure submission.

The inside heel hook's competitive impact since approximately 2015 has been profound. ADCC tournaments now feature inside-heel-hook finishes as one of the most common submission types, and the technique has substantially reshaped the competitive no-gi landscape. The IBJJF restricts heel hooks to brown belt and above (and only in no-gi competition); the ADCC permits them in all weight classes. The most celebrated practitioners include John Danaher's students (Gordon Ryan, Garry Tonon, Eddie Cummings), the broader B-Team / New Wave roster, and competitors like Lachlan Giles who used the technique to win his ADCC 2019 absolute bronze medal. Defensively the inside heel hook is escaped by recognizing the entry early and hiding the heel before the saddle locks, by rotating the captured leg inward to deny the heel exposure, by hand-fighting the foot-grip before the rotation begins, or by attacking the attacker's exposed leg in counter-leg-lock entries.