The saddle — also called inside sankaku, the honey hole, or the 411 — is the leg entanglement modern no-gi grappling is organized around. Where its parent position, single-leg X, sweeps a standing opponent and feeds the back, the saddle rotates a downed opponent's hip until the knee line is dead and the inside heel hook has no counter.
At the 2019 ADCC World Championship in Anaheim, California, Kaynan Duarte had just finished the best two days of his competitive life. Giving up as much as fifteen to twenty kilograms to the field, the twenty-one-year-old had upset Marcus "Buchecha" Almeida and then beaten Nicky Rodriguez 3–0 to win the under-99kg division outright. He entered the absolute bracket still riding that momentum, a fresh divisional champion looking for more.
His first opponent in the open-weight draw was Lachlan Giles — an Australian black belt who competed, that same weekend, at his actual weight of under 77 kilograms. Giles was giving up more size to Duarte than Duarte had just spent two days giving up to everyone else. He sat to the legs anyway, worked underneath the much larger man, and found the shape he needed: his own two legs threaded around one of Duarte's, hips turned to the inside line, the knee folded and the heel exposed with nothing Duarte could do about it. Giles finished the inside heel hook. It was the first of three heavyweights he would submit the same way that weekend, all by the same route into the same family of position, on the way to an absolute bronze medal that remains one of the most-replayed underdog performances in the sport's modern history.
None of it was a scramble. It was a specific, repeatable shape — a leg triangled around a leg, a hip rotated until the opponent's counter-attack simply did not exist. That shape has almost as many names as it has finishes: the saddle, inside sankaku, the honey hole, the 411. Whichever name a given gym uses, the mechanism is the same, and it is the reason a 77-kilogram grappler could put three much larger men to sleep — legally, calmly, and without brute strength — inside a single tournament.
This is the story of that shape.
The saddle is the leg entanglement built to delete the opponent's counter-attack entirely — a rotated hip and a folded knee that turn the inside heel hook from a race into a formality, which is why the modern no-gi game is organized around reaching it rather than merely finishing from wherever the legs happen to tangle.
Leg entanglements are not a modern invention. Judo's newaza curriculum has long included leg locks in principle even where competition rules restricted them, catch wrestling built a professional career around the ankle and the knee for a century before jiu-jitsu existed as a sport, and sambo — Soviet combat sport, itself descended partly from judo — never abandoned the leg the way Kodokan-descended competitive judo and, later, the IBJJF's gi ruleset largely did. The specific shape of one grappler's legs triangled around a single leg of an opponent, from the inside, is old technique wearing a series of newer names.
What changed in Brazilian jiu-jitsu was not the shape's existence but its status. For most of the sport's first fifty years, leg attacks generally — and inside leg entanglements specifically — were treated as a fringe tactic: legal in most no-gi formats, banned outright in gi competition above white belt for a period, and dismissed by much of the competitive mainstream as either dangerous or unsophisticated. The vocabulary reflects that marginal status. "Honey hole" is 10th Planet Jiu-Jitsu terminology — the hybrid no-gi system Eddie Bravo built outside the traditional gi lineage in the 2000s, in a community that never inherited the gi world's institutional suspicion of the legs and kept inside leg attacks in active rotation the whole time. "411" and "the saddle" circulated in overlapping no-gi and grappling gyms alongside it. "Inside sankaku" — sankaku meaning "triangle" in Japanese — is the more literal, judo-adjacent term for the same family, used when the position is finished off with a true triangle configuration of the attacker's own legs. All four names point at the same entanglement; which one a given room uses says more about that room's lineage than about the technique itself.
The shift from fringe tactic to central system is inseparable from John Danaher and the group of students at the Renzo Gracie Academy in New York who became known as the Danaher Death Squad — Eddie Cummings, Garry Tonon, and, in the years that followed, Gordon Ryan and Nicky Ryan. Beginning around 2011, that group mapped the leg-lock game the way earlier generations had mapped the guard: not as a grab-bag of opportunistic attacks but as a control hierarchy, ranked from a symmetrical, contested entanglement (50/50, where both grapplers have equal access to the same leg) out to progressively more one-sided inside positions — with the saddle, and its finished form as inside sankaku, sitting near the top of that hierarchy as the place a defender has essentially nothing left to fight with. Danaher's 2016 instructional, Leg Locks: Enter The System (BJJ Fanatics), put that hierarchy into print for a mass audience and became one of the most consequential releases in the sport's history. The full architecture of that system — and the coach who built it — is the subject of a companion bjj.media article, Danaher's Heel Hook System; this one is about the single entanglement that system treats as its finishing address, not the whole system built around it.
The saddle's codification as its own, standalone subject of study — as opposed to one stop on a larger leg-lock map — arrived later and from a different corner of the sport. Lachlan Giles, the Melbourne-based black belt and head coach at Absolute MMA St Kilda who mentored Craig Jones through his formative years, released a dedicated instructional titled simply The Saddle through BJJ Fanatics, with a companion course of the same name, Saddle, available through Submeta — a position-specific study built entirely around entries, control, the finishing mechanics, and the defensive side of living inside the entanglement. That a single leg configuration — not "leg locks" broadly, not even "heel hooks" broadly, but this one entanglement specifically — could support a standalone, multi-volume release is the clearest evidence the position had become something the sport studies in its own right rather than a subsection of a broader leg-lock curriculum.
Strip away the finishing submission and the saddle is a specific, describable shape: one grappler's two legs wrapped around a single leg of the opponent, from the inside, with the attacker's hips rotated to a line the opponent cannot square up against. Every element of that description does mechanical work, and losing any one of them degrades the position into something weaker — a loose entanglement, a scramble, or a symmetrical 50/50 where the advantage has evaporated.
The trapped leg, isolated from the inside. The defining choice is which side of the opponent's leg the attacker occupies. An outside entanglement — the standard or "outside" ashi-garami most grapplers meet first — sits on the little-toe side of the trapped leg and threatens an outside heel hook, a submission with a shallower, more forgiving rotational path. The saddle sits on the inside, the big-toe side, closer to the opponent's own centerline. That inside position is mechanically harder to reach and, once secured, dramatically harder to escape — it is also the position from which the inside heel hook becomes available, widely regarded as the more powerful and more dangerous of the two heel-hook variants precisely because the rotation it produces feeds more directly into the knee's weakest plane.
The legs form a triangle, not a wrap. The attacker's own two legs close around the trapped limb the way a triangle choke's legs close around a head and an arm — one leg's ankle hooking behind the other knee, forming a locked ring around the opponent's thigh or lower leg rather than a loose scissor. Community usage is not perfectly consistent here: some coaches use "the saddle" for the entanglement generally and reserve "inside sankaku" specifically for the moment that ring is fully triangled and locked, while others — including much of the casual instructional media — treat the two terms as interchangeable. This article follows the more precise distinction where it matters and otherwise treats them as the same family, in keeping with majority usage.
The hip line, rotated, not square. A defender whose hips remain square to the mat retains options — he can still, in principle, turn to face his attacker, recover guard, or mount a counter-entanglement of his own. The saddle's whole argument is removing that option: the attacker's own hip and weight rotate the opponent's trapped leg internally, at the hip and the knee simultaneously, until the defender's upper body is being dragged out of alignment with his own lower body. Once that rotation is committed, the defender cannot square back up without first solving a problem — recovering the hip — that the position was built specifically to deny him.
The free hand and the far leg, controlled, not ignored. The trapped leg is only half the picture. A defender with a fully free far leg and an unoccupied upper body still has tools: a post to scramble away with, a kick to strip the entanglement, a body lock to turn the tables. Competent saddle control includes managing that far leg and that upper body — pinning a shin, denying a post, collapsing the space the defender would need to build a counter — so that the trapped leg is not merely held but the entire body is accounted for.
The knee line, killed, before the heel is exposed. This is the sequencing lesson the entire Danaher-lineage system insists on and the saddle exists to deliver: control precedes finish. Before any rotation toward a tap is attempted, the defending knee's mobility is eliminated — no daylight, no give, no room for the joint to travel with the twist rather than against it. Attackers who skip this step and lunge straight for the ankle from a loosely-held saddle are the ones who let opponents roll through, spin out, or counter into a heel-hook exchange of their own. Attackers who kill the knee line first are not racing anyone.
Held to those five elements, the saddle opens a narrower but more decisive menu than a looser leg entanglement offers, because the defender has so little left to contest.
The inside heel hook is the position's signature finish and the reason the entanglement exists in the modern game's vocabulary at all. With the knee line dead and the heel exposed, a small, controlled rotation — not a violent wrench — turns the ankle against the knee's weakest rotational plane.
The straight ankle lock is available from the same control without the same rotational commitment, extending the ankle joint directly rather than turning it — a lower-risk, lower-reward attack some grapplers use as a probing threat that forces the defender to react and, in reacting, expose the heel more fully.
The toe hold and calf-slicer variants live in the same neighborhood, attacking the ankle or the knee from a slightly different angle of control, and are typically the entanglement's secondary threats rather than its primary ones — the submissions a defender's specific reaction opens up, not the ones an attacker plans around from the start. (See the companion Toe Hold and Straight Ankle Lock articles for the mechanics of each finish on its own terms.)
The back take is the saddle's non-obvious exit. A defender who successfully turns away from the leg attack — rolling face-down to hide the exposed leg and protect the knee — has often done nothing but hand the attacker a straight run to the back, because the same rotation that was killing the knee line has already turned the defender's hips out of position to defend a mount from behind. Coaches in the Danaher lineage teach the saddle explicitly as a back-take entry for exactly this reason, not only as a submission-hunting position.
The unifying idea, stated plainly: a looser leg entanglement gives the defender a menu of escapes and a race for the finish. The saddle, held correctly, gives the defender almost nothing — which is the entire case for spending effort climbing toward this specific shape rather than finishing wherever the legs first happen to tangle.
By 2026, the saddle's vocabulary — inside versus outside position, killing the knee line, the saddle itself as a named waypoint — is simply how the sport's no-gi wing talks about the legs, independent of whether a given coach ever trained directly under Danaher or in the 10th Planet lineage that carried "honey hole" into the mainstream. What began as one system's internal jargon has become the shared language of an entire competitive discipline.
The most consequential institutional change came from the sport's largest governing body. On 1 January 2021, the IBJJF — which had banned heel hooks and knee-reaping positions for its entire history — legalized both for adult brown and black belts in no-gi competition, explicitly sanctioning the inside and outside heel hook and the reaping positions, including inside leg entanglements, that the technique depends on. The change did not extend to gi competition, to masters divisions, or to belts below brown. But it meant that a brown belt preparing for the IBJJF No-Gi Worlds now has to defend the saddle the way an earlier generation had to defend the back — a required part of the curriculum, not an optional specialty. (FloGrappling)
The other real shift is how the position is talked about relative to its symmetrical cousin, 50/50. In the gi era, 50/50 was notorious as a stalling, stalemated guard — a shared entanglement in which neither grappler could finish without a legal reaping motion, so competitors sat in it to run out a clock. No-gi and the legalized heel hook transformed 50/50 into a live, dangerous attacking position (see Fifty-Fifty), but it remains fundamentally symmetrical: whatever heel-hook threat one grappler has, the other has the mirror image of it, and the exchange is a race. The saddle is the position the modern game treats as the correction to that race. It is deliberately, structurally asymmetric — one grappler has full control and a live finish; the other has almost nothing. A significant share of elite no-gi strategy in 2026 is exactly this: rather than committing to a 50/50 gamble, spend the extra step climbing from a shared entanglement to an inside one, because the saddle turns a coin flip into a formality.
Gordon Ryan — the most decorated competitor to come out of the Danaher lineage, a seven-time ADCC champion and the first grappler to win ADCC gold in three different weight classes (see Gordon Ryan) — is the athlete most associated with finishing matches from exactly this position at the sport's highest level. His leg game is not a specialist's sideline; the inside heel hook from the saddle sits inside a connected system alongside his passing and back-attack work, threatened and defended as fluidly as any other position rather than hunted as an isolated trick.
Selecting bouts the saddle decided cleanly — as opposed to the broader leg-lock exchange it can feed into — narrows the field to finishes specifically identified, in contemporaneous reporting and video breakdowns, as inside heel hooks rather than outside ones or generic leg-lock scrambles.
Beyond these three, the saddle's competitive footprint across the Danaher lineage's EBI-era run (Eddie Cummings and Garry Tonon in particular) is real but harder to isolate cleanly: those competitors' heel-hook finishes are well documented in general terms, but individual match dates, opponents, and scoreline detail specific to the saddle rather than the outside entanglement are not confirmed in the sources available for this article and are left general rather than asserted with false precision.
White belt, under IBJJF rules, does not compete with heel hooks at all — no-gi legalization begins at brown belt. What a white belt can and should learn is the shape itself: how to recognize an inside entanglement forming, and, defensively, that hiding the heel and refusing to let the far leg go slack are skills that start on day one, long before the finish is legally available.
Blue belt learns the outside entanglements and the straight ankle lock that lives there, building entry habits and hip discipline the saddle will later depend on — largely without heel-hooking, since the competitive ruleset still forbids it at this rank.
Purple belt starts building the hierarchy explicitly: single-leg X to a standard ashi-garami to the inside position, and the judgment to keep climbing toward the saddle rather than settling for whatever entanglement the scramble first produces. The purple belt is learning the position, not yet chasing the finish.
Brown belt, the first rank the IBJJF permits to compete with the heel hook in no-gi, is where the study turns competitive rather than theoretical. The brown belt learns to hunt the inside heel hook from the saddle specifically, and to defend it from the disadvantaged side of a symmetrical 50/50.
Black belt integrates the saddle into a connected system — threatening it to open a pass, entering it from a failed sweep or a defended back-take, and treating the entanglement as fluidly as guard or mount. For a black belt in this system, the legs are not a specialty bolted onto everything else; they are one more region of the body governed by the same logic of dominant and inferior position.
Coral belt can explain, without notes, the difference between the saddle and inside sankaku strictly defined, which instructional codified which control point, and why the position is built to remove the defender's counter-attack rather than merely to reach the heel first.
1. Racing for the heel before killing the knee line. The single most common error at every rank still learning the position. A grappler who lunges for the ankle the moment the entanglement forms, without first eliminating the defending knee's mobility, gives the opponent room to roll through the attack or spin into a counter-entanglement of his own. Fix: control precedes finish, every time, no exceptions.
2. Treating the saddle like 50/50. The saddle is asymmetric; 50/50 is symmetric. A grappler who settles into the saddle and then plays it cautiously, as though the opponent has an equal counter-threat, is squandering the position's entire advantage. Fix: recognize which entanglement you are actually in before deciding how much risk to accept.
3. Losing hip rotation and going square. The moment an attacker's own hips square back up to the mat, the defender regains the ability to square his as well — and with it, options the position was built to deny him. Fix: maintain the rotated hip line as an active, ongoing commitment, not a one-time adjustment.
4. Ignoring the free leg and the far-side hand fight. An attacker fixated entirely on the trapped leg while the defender's free leg and upper body go unmanaged is leaving the door open for a post, a kick-out, or a body-lock reversal. Fix: control the whole body, not just the limb being attacked.
5. Entering the saddle from standing, the way a grappler enters single-leg X. The saddle is a mat-level, downed-opponent entanglement, not a standing one; forcing an entry against a grappler who is still upright and based tends to produce a leg drag for the opponent rather than a controlling entanglement. Fix: the saddle is typically reached from a scramble, a failed sweep, or a collapsing single-leg X — not manufactured against a fully standing, based opponent.
At open mat this week, isolate the entry alone. Starting from a standard outside ashi-garami with a same-rank partner, work only to rotate from outside to inside position — the saddle itself — while your partner's only job is to prevent that rotation and recover a neutral base. No submissions attempted. Five-minute rounds, both sides.
Then isolate the knee-line-kill separately from the finish. Once inside the saddle, work only to eliminate the defending knee's mobility — no daylight, no give — without attempting any rotation toward a tap. Learn to recognize the exact moment control is complete and the finish becomes a formality rather than a fight.
Finally, drill the position's other exit: from a controlled saddle, practice releasing the leg attack entirely and climbing to the back instead. This is the half of the position most hobbyist training skips, and it is the reason coaches in the Danaher lineage teach the saddle as a back-take entry as often as a submission hunt.
Repeat weekly for six weeks, with an experienced partner and slow, controlled pressure whenever live finishing is added. The saddle rewards patience in training the same way it rewards patience in competition — the grapplers who rush it are the ones who get countered.
The saddle is a leg-lock position first — a finishing entanglement that shares a lineage with single-leg X but plays an entirely different role in a match.
Every one of these was reached by someone who kept climbing the entanglement hierarchy instead of settling for the first leg tangle a scramble produced. That climb is the map.
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gordon-ryan.md) intentionally leaves this match's time unstated. This article states the figure only as "reported by some outlets" rather than as verified fact; reconcile with the athlete-profile article's treatment before publish, and confirm the exact time either way.danaher-heel-hook-system.md article. Flagged in case editorial wants the distinction drawn out at greater length or collapsed entirely.