The 'Pull Then Push' Principle: The Hidden Rule Behind Every BJJ Sweep — And Why Your Coach Never Named It

It happens in every academy, on every Tuesday night, in every country where the gi gets folded.

A blue belt sits in butterfly guard. He has the underhook. He has the sleeve. He has the hook deep under the thigh. He elevates — and his partner posts a hand, sprawls a knee, and stuffs the sweep cold. The blue belt grunts, resets, tries again, and gets stuffed again.

The instructor walks over. He doesn't add a new grip. He doesn't change the foot position. He says one sentence. It's some version of: "You're only pushing. You have to pull him into you first, then push the leg up."

The blue belt tries it once more. His partner tips over like a folding chair.

The student walks off the mat that night thinking he learned a butterfly sweep. He didn't. He learned the principle underneath every sweep in the art — he just doesn't know it yet, because nobody named it for him.

The Principle

The principle has a name in judo, and it predates Brazilian jiu-jitsu by half a century. The Japanese called it kuzushi — the breaking of balance. Jigoro Kano taught that no throw is possible without it. You do not throw a standing opponent. You throw a falling one. The art is in the moment of the fall.

When jiu-jitsu went horizontal — when Carlos and Helio Gracie took the throws of Maeda's judo and rebuilt them for a man on his back — kuzushi did not disappear. It rotated ninety degrees. The opponent is no longer falling toward the floor; he is falling across your hips. But the requirement is the same. You cannot sweep a balanced man. You have to break his base first, and a base is a triangle, and a triangle breaks when one corner moves toward you while another moves away.

That is the entire principle. Pull one corner in. Push one corner out. The triangle collapses. The sweep is what happens after.

Helio said it in the language of a man who weighed 140 pounds and trained with opponents who weighed 200. "Always assume that your opponent is going to be bigger, stronger and faster than you; so that you learn to rely on technique, timing and leverage rather than brute strength." Leverage is not a metaphor in that sentence. Leverage is a class of motion in which two forces act on the same body in opposite directions across a fulcrum. That is the pull and the push, exactly.

John Danaher has talked around this idea for years without giving it a one-word name. On the Lex Fridman Podcast (Episode #182, 2021, and Episode #328, 2022), Danaher returns repeatedly to the framework of mechanical advantage, of breaking an opponent's structure before attempting a finish, of "creating dilemmas" rather than chasing techniques. The DDS pin/dilemma/sub framework is, at its root, a principle-first restatement of what Helio was teaching in a Rio garage in the 1940s. The technique is downstream of the principle. The principle is the thing.

The reason coaches don't name it is not malice. It is that the technique-of-the-day model — Tuesday is butterfly, Thursday is X-guard, next Tuesday is single-leg-X — is easier to schedule and easier to demo than a principle is. A principle is invisible. A technique is a thing you can film. So we film the techniques.

But every technique that works contains the principle. Let's look at three.

Sweep 1: Butterfly Sweep

The butterfly sweep is the cleanest expression of pull-then-push in the art. It is also the sweep that has produced more high-level submissions than any other in modern competition, because of one man.

The pull: the same-side sleeve, or an underhook, or a far-side collar. Whichever grip you have, your job in the first beat is to drag your opponent's weight onto your chest. He needs to be leaning into you, not sitting upright. If he is upright, his base is a tripod. If he is leaning into you, his base is two points — and two points are a line, and a line tips.

The push: the hook. Your shin, wedged under his thigh, is the lever. Once his weight is on you, the hook lifts the thigh, and the thigh has nowhere to go but up and over. He rotates around the corner of his hip that you are still pulling toward you. He lands on his back.

If you reverse the order — if you try to lift the hook first and pull the sleeve second — the sweep dies. He posts. He frames. He sprawls. The shin pushes air. This is the failure mode that puts blue belts on the bench for a year before they figure it out.

Sweep 2: Scissor Sweep

The scissor sweep is older than most of the people reading this article, and it is still the first sweep most academies teach a white belt. There is a reason. It is the principle laid out in geometry a child could draw.

The pull: the collar grip, deep, with the elbow tight to your ribs. You yank him forward and across, toward your top shoulder. His weight crosses his own knee. The triangle has lost one corner.

The push: the bottom leg, the scissor itself. The shin slides across his belt line. The other leg drops behind his knee. When the shin pushes and the collar pulls, his hips have nowhere to live. He rotates over the line of your scissor and lands on his side.

This is not a modern sweep. This is the sweep that Carlson Gracie drilled in his Copacabana academy in the 1960s and 1970s — the academy that, per BJJ Heroes, became the first in Brazil to teach jiu-jitsu in group classes rather than one-on-one, and the first to admit students who couldn't pay. Carlson didn't dress it up. The pull and the push were the lesson. Everything else was application.

Sweep 3: Berimbolo / Crab Ride Family

The berimbolo is the controversial entry on this list. Older players think it ruined jiu-jitsu. Modern competitors think it is a complete system. Both are partly right. But it is built on the same principle as the scissor sweep that Carlson was teaching half a century before it existed.

The pull: the sleeve and the collar, or the double sleeves, or — in the De La Riva entry — the ankle. You drag the standing opponent's posting leg toward your spine. His weight comes with it. The corner of the triangle nearest you collapses.

The push: the inverted rotation itself. Your hips, your shoulder, your knee — the whole frame of your body pushes through the gap that opened when his post moved. You aren't pushing his knee away in the butterfly sense. You are pushing yourself underneath him. The leverage is the same; the geometry is just upside down.

This was the Mendes brothers' discovery, and Cobrinha's before them. In the late 2000s and early 2010s, the featherweight black belt division was where the sport's principle-thinkers lived. They were trying to solve a specific problem — how does a small man sweep a base-heavy guard passer in the modern points era — and they returned to kuzushi to do it.

Why Coaches Don't Teach It

The honest answer is that the technique-of-the-day model is not built to teach principles. It is built to fill 60 minutes, demonstrate a clean rep, and give every student a thing to remember on the drive home. "We did flower sweep tonight" is a satisfying sentence. "We worked on the pull-push relationship in five different sweep families" is not, because most adult students in a recreational class do not want to think in abstractions after a workday.

The systems that do teach principles are the exceptions that prove the rule. John Danaher's DDS framework — pin to dilemma to submission, with the principle of mechanical inevitability running underneath — is principle-first by design. Priit Mihkelson's defensive system is built around a small number of postures (turtle, supine, panda) that work in dozens of situations precisely because the postures are principles, not techniques. Henry Akins' "hidden jiu-jitsu" — taught directly out of the Rickson lineage — is almost entirely about kuzushi-style connection and weight distribution, with the techniques themselves treated as downstream artifacts.

The common thread: the coaches who name the principle produce students who can invent. The coaches who teach only techniques produce students who can imitate.

There is a reason your room's best blue belt sweeps people with stuff you've never seen drilled. He isn't making it up. He is expressing the principle in a shape no one has filmed yet.

The Drill That Builds the Reflex

You don't get the principle by reading about it. You get it by saying it out loud, under load, while someone is actively resisting you. This drill is dumb, repetitive, and the most useful thing you will do this week.

A hundred sweeps. One principle. Pull one corner in, push the other out, the triangle collapses, the man falls. Helio knew it. Rolls knew it. Carlson taught it without naming it. Marcelo, the Mendes brothers, and Cobrinha rebuilt the sport around it without writing it down.

Now you know it. Go drill.