YR Sports Lab
The heel hook is widely regarded as the most destructive and most controversial leg lock in jiu-jitsu. It loads the knee with rotational torque, and the pain very often arrives after the damage has already been done. This guide starts with the unresolved question of who actually invented it, then works through the mechanics, the classic entries, the strengths and limits, the common escapes, and the full arc that took the technique from academy taboo to IBJJF legalisation in 2021 and to a signature weapon on the ADCC mats.
1. Origins: an invention story that spans half a century
The heel hook has no single, undisputed inventor. Two competing accounts circulate in jiu-jitsu history, and the argument is still a favourite among grappling historians.
Version one: the Ivan Gomes account. Ivan Gomes (born 25 December 1939 in Campina Grande, Brazil; died March 1990 of kidney failure) was a well-known vale tudo fighter from north-eastern Brazil in the 1950s through the 1970s. He trained under José Maria Freire (Zé Maria) and Agatangelo Braga, earned his black belt at around 21, and competed in vale tudo from 1954 to 1977. In the early 1960s he fought Carlson Gracie to a draw, and in the mid-1970s he travelled to Japan to compete for Antonio Inoki's New Japan Pro-Wrestling, where he beat Japanese fighters including Strong Kobayashi and Osamu Kido. In this version, Gomes is credited as the creator of the heel hook as it is used today.
Version two: the Takeo Yano account. A second line of research traces the technique further back. The Japanese judoka Takeo Yano (born around 1909, died 1988) came out of the Dai Nippon Butoku Kai in Kyoto, trained under Hajime Isogai, an early student of Jigoro Kano, and specialised in ne-waza. Yano arrived in Brazil in 1934 and taught at Club Naval in São Paulo and later at the Flamengo athletic club in Rio. He drew with George Gracie in 1935 and with Helio Gracie in 1936, then lost a second meeting with George Gracie later that same year, after which the two became rivals and collaborators. Yano also mentored Francisco Sá over many years, seeding the SAS Team jiu-jitsu lineage that survives to this day. In this version it was Yano who systematically introduced leg locks into Brazilian academies, making Gomes the man who later exported the system back to Japan and taught it to professional wrestlers, rather than its original inventor.
The two versions are not mutually exclusive, and together they form a fuller lineage
Read side by side, the two accounts sketch a single continuous transmission path: Yano brings leg locks into Brazilian academies in the 1930s → the technique passes through the generation of coaches around Zé Maria and reaches Gomes → Gomes turns it into his signature weapon on the vale tudo circuit in the 1960s and 1970s, then carries the system to Japan in the mid-1970s. That is precisely why the grappling community still calls the heel hook's origin an unsettled case: each version stands on its own evidence, yet together they describe a technical genealogy that crosses Japan and Brazil over nearly half a century.
2. Mechanical breakdown: leg control, heel grip and rotation
The most common controlling positions for the modern heel hook come from the ashi garami family, which includes 50/50, the saddle (inside sankaku) and outside ashi variations. The action itself splits into three phases:
| Phase | Key points |
|---|---|
| ① Establish the leg entanglement | Trap and fix the opponent's leg above the knee with both of your legs, removing the rotational freedom of their hip and knee; this step determines how stable everything that follows will be |
| ② Secure the heel grip | Clamp both hands around the opponent's heel, with the arm wrapping from the inside of the foot for the inside version and from the outside for the outside version; the closer the grip sits to the heel itself, the more efficient the lever |
| ③ Rotate slowly under pressure | The attacker drives the rotation with the whole body so the opponent's lower leg twists against a fixed knee, concentrating the force on the knee joint rather than the ankle, which is exactly what makes it more dangerous than an ankle lock |
The inside heel hook rotates the heel inward with the axis of rotation running through the knee, so it mainly threatens the anterior cruciate ligament (ACL), the medial collateral ligament (MCL) and the meniscus. The outside heel hook rotates the heel outward, spreading more of the load into the ankle, so it mainly threatens the lateral collateral ligament (LCL) and the ankle ligaments. The inside version is generally considered more destructive because the ankle has less range of motion in that direction, so more of the torque transfers straight into the knee.
3. Entries and setups
A heel hook is rarely launched out of nowhere. It usually grows out of a specific leg entanglement:
First, when an opponent's guard pass stalls with the legs still tangled. If they force their way past the guard without fully clearing the leg entanglement, the bottom player can often build an ashi garami on the spot and go straight into leg control.
Second, off sweeps from open guards such as De La Riva and the X-guard system. When a sweep fails or is countered, both athletes' legs are frequently still intertwined, and that is a classic moment to fight into 50/50 or the saddle and contest the heel.
Third, as a fallback after a passing attempt is defended. When a passing attempt is blocked by the opponent's legs, attacking the legs is usually a better investment than grinding forward. This is why, in modern black belt matches, guard passing and leg locking often trade places within a single exchange.
4. Strengths and limits
| Strengths | Limits |
|---|---|
| Does not depend on size or grip strength; it wins on leverage and rotational angle, so it suits athletes of every build | The pain often lags behind the damage, so both drilling and competition demand higher safety awareness and strict speed control |
| Entries flow naturally out of leg entanglements, with no need to establish top control first | Steep learning curve; the fine details of ashi garami control (knee locking angle, hip orientation) take a long time to accumulate |
| Extremely threatening under no-gi and submission-only rules, and a common finisher at the highest levels | IBJJF restrictions are heavy: banned outright in the gi and legal in no-gi only for brown and black belts, which limits where you can drill and compete with it |
| Chains into a complete tactical system alongside 50/50, the saddle and other leg entanglements | Against an opponent fluent in leg entanglement exchanges, the window for escapes and counters is genuinely wide |
5. Common escapes and counters
The window for escaping a heel hook sits in the phase before the attacker has fully secured the heel grip and reached the finishing angle. The core principle is to move with the rotation rather than fight against it:
First, hide the heel. The moment you feel the heel being contested, rotate it under the opponent's hip and away from the range their palms can clamp on, so they never claim a complete lever.
Second, roll with the rotation to bleed off torque. If the opponent is already applying an outside heel hook, the correct escape is to roll actively in the direction of the rotation instead of resisting the other way. That lets the knee turn together with the body rather than absorbing the twist in one joint.
Third, break the entanglement pre-emptively. Before the ashi garami is finished, use your free leg to intervene and spoil their control angle, or pull the trapped leg out entirely, stopping the entanglement from ever forming.
What the defender should do immediately after escaping
Once you have bled off the torque or pulled the leg free, re-establish distance or a guard structure before you counter-attack. Leg entanglement exchanges usually leave both athletes temporarily out of position, and attacking too early is the fastest way to get dragged straight back into leg control.
If the escape is too late and the torque is clearly building, tapping early is always the only correct option. The injury risk of a heel hook is tightly coupled to how quickly you tap, and hesitation buys nothing back in recovery time.
6. Competition frequency and legality
Under the current IBJJF rules (effective 1 January 2021), heel hooks and knee reaping are banned at every belt level in gi competition. In no-gi they are open only to adult brown and black belts, with white, blue and purple belts excluded entirely. By contrast, ADCC has allowed the full submission arsenal at every level since its first event in 1998. The first heel hook finish in a major no-gi submission grappling event came at that 1998 ADCC, when Australia's Elvis Sinosic submitted the American Clarence Thatch.
The defining heel hook figure in ADCC history is the American Dean Lister, who competed in five ADCC main events (2003, 2009, 2011, 2013, 2015) and accumulated at least nine submission wins by heel hook across them, including the 2003 absolute title, the 2011 99 kg title and a 99 kg silver medal in 2013. He also beat Jean Jacques Machado in the 2005 Superfight. Lister holds the most heel hook victories in ADCC history and in 2022 became the first American inducted into the ADCC Hall of Fame. His leg locking record directly inspired the New Zealand-born black belt coach John Danaher: after receiving his black belt under Renzo Gracie in 2002, Danaher began his systematic study of leg locks precisely because of what he saw in Lister's results. The Danaher Death Squad he produced (Gordon Ryan, Garry Tonon, Craig Jones, Nick Rodriguez and Nicky Ryan) collected a long list of IBJJF, ADCC and EBI titles from the late 2010s until the team disbanded in 2021, and was the decisive force in moving the heel hook from fringe technique to mainstream modern jiu-jitsu strategy. The IBJJF and ADCC organisations publish only placings and match results, not technique-level usage statistics, so there is no verifiable official figure for the percentage of submissions made up by heel hooks; the athlete records above are offered instead as concrete evidence of how often it appears.
7. Safety notes
The central risk of the heel hook is that the pain feedback lags behind the actual damage, in clear contrast to arm locks, which hurt first, injure second and give obvious warning. A case report on an MMA athlete documented a 32-year-old competitor sustaining a complete anterior cruciate ligament rupture together with medial collateral ligament damage from a heel hook, with the knee flexed and forced into valgus and internal rotation at the moment of injury. For the full mechanical analysis of knee rotational torque, ligament risk grading and academy safety policy, see our companion article Decoding the Heel Hook: Knee Rotational Torque, Ligament Risk and an Academy Safety Guide.
・Only drill with an instructor supervising, and only with partners who understand leg lock etiquette
・The attacker applies slow, linear pressure only; no jerking or explosive acceleration, and a complete release the instant the partner taps
・The defender should tap early rather than chase an escape once the angle or torque clearly increases
・Anyone with a prior knee or ankle injury should talk to their coach first about adjusting intensity and role assignment
FAQ
Can white belts or blue belts use heel hooks in competition?
No. Under the current IBJJF rules (effective 2021), heel hooks are banned at every belt level in gi competition. In no-gi they are permitted only for adult brown and black belts, so white, blue and purple belts may not use them at all and doing so means disqualification. Submission-only no-gi events such as ADCC, EBI and Polaris allow them at every level.
What is the difference between an inside and an outside heel hook, and which is more dangerous?
The inside heel hook rotates the heel inward and mainly threatens the anterior cruciate ligament (ACL), the medial collateral ligament (MCL) and the meniscus; the outside heel hook rotates the heel outward and mainly threatens the lateral collateral ligament (LCL) and the ankle ligaments. The inside version is generally considered more destructive because the ankle has less range of motion in that direction, so more of the torque transfers straight into the knee, and that is exactly why academies regulate it more strictly.
How do you escape once a heel hook is locked on?
The core principle is to move with the rotation rather than fight against it. When you feel an opponent locking an outside heel hook, roll actively in the direction of the rotation to bleed off the torque while tucking your heel under their hip so they cannot claim a full lever. The earlier you start the escape, and the less complete their control is, the higher your chance of getting out; once the angle is fully locked in, escaping becomes far harder.
Why is the heel hook singled out for special restrictions in most academies?
Because the damage it does to the knee often arrives before the pain does, and by the time a training partner feels it the ligaments may already be injured. That is clearly different from arm locks, which hurt first and injure afterwards. Most academies require an instructor to supervise heel hook drilling, and insist that the attacker apply slow, linear pressure and release completely the instant their partner taps.
Who actually invented the heel hook?
There is no settled answer, and this is one of the famous unresolved questions in jiu-jitsu history. The traditional account credits Ivan Gomes, a Brazilian vale tudo fighter of the 1960s, as the creator of the version used today. Another line of research argues that the Japanese judoka Takeo Yano brought leg lock technique into Brazilian academies in the 1930s, making Gomes the man who later carried the system to Japan and taught it to professional wrestlers rather than its original inventor.
References
1. Wikipedia. Ivan Gomes. en.wikipedia.org (accessed 2026/08; supports Gomes's dates, lineage, vale tudo record, his draw with Carlson Gracie, his Japanese campaign, and the claim that he created the heel hook)
2. Simon BJJ. Takeo Yano. simonbjj.com (accessed 2026/08; supports Yano's biography, his training under Hajime Isogai, his 1934 arrival in Brazil, his matches with George Gracie, his mentorship of Francisco Sá, and his role in introducing leg locks to Brazilian academies)
3. FloGrappling. The History of Heel Hooks. flograppling.com (accessed 2026/08, published 2021/06/02; supports the 1998 ADCC Elvis Sinosic submission of Clarence Thatch as the first heel hook in a major no-gi submission event, and Dean Lister's nine heel hook finishes across five ADCC appearances)
4. Wikipedia. Dean Lister. en.wikipedia.org (accessed 2026/08; supports Lister's ADCC title record, the 2011 99 kg gold medal result, and his 2022 induction as the first American in the ADCC Hall of Fame)
5. IBJJF. New Rules Updates. ibjjf.com (accessed 2026/08; official source supporting the heel hook and knee reaping rules effective 1 January 2021 and their restriction to adult brown and black belt no-gi divisions)
6. Wikipedia. John Danaher (martial artist). en.wikipedia.org (accessed 2026/08; supports Danaher's biography, his 2002 black belt promotion, the influence of Dean Lister on his systematic leg lock research, and the Danaher Death Squad roster and its July 2021 dissolution)
7. Baker JF, Devitt BM, Moran R. (2010). Anterior cruciate ligament rupture secondary to a 'heel hook': a dangerous martial arts technique. Knee Surg Sports Traumatol Arthrosc;18(1):115-116. PubMed PMID 19629437 (supports the case report of a 32-year-old MMA athlete sustaining a complete ACL rupture with MCL damage from a heel hook, and the description of the knee being flexed, valgus-loaded and internally rotated at the moment of injury)