The butterfly hook as a lever

Position and problem

You are seated with the instep of one or both feet under the opponent's thighs. The hooks are in. Then you lift, and nothing happens — the opponent stays exactly where they are, or worse, they use the moment to flatten you and start passing. The hooks were present but they were never carrying anything. A hook that is not under load is a shin resting against a leg; a hook that is under load is a lever with the opponent's own weight sitting on the long end of it.

Objective

Transfer the opponent's weight onto your hook so that raising the leg lifts the opponent rather than just moving your own foot.

Core concept

The lever is the shin and the fulcrum is your hip, and neither does anything until weight is on it. This is why the sequence is connect, load, then lift — not lift and hope. Loading happens through upper-body connection: an underhook or an overhook that pulls their chest onto your chest and takes their base off their own knees. Once their weight is over your hook, your leg is not lifting a person from a standstill; it is finishing a rotation their own weight has already started. A related property worth knowing: because both of your knees are between you and the opponent and your hips are square and upright, butterfly keeps you relatively short and connected in a way that makes it harder for a partner to isolate a leg for entanglement than most flat-backed open guards. That is a structural tendency, not a guarantee — it depends entirely on staying seated and square.

Key mechanics

1. 01Sit up. Your head should be at least level with theirs. A seated posture that has collapsed backwards cannot load anything, because there is nothing to pull their weight onto.
2. 02Set the upper-body connection before the leg does any work. An underhook, an overhook and a wrist, or a two-on-one — pick one and get their chest onto yours.
3. 03Depth of hook is a decision, not a default. High and shallow, on the crook of the knee, raises a long lever with less risk of being sat on; deep toward the groin holds them tighter and is harder to remove but easier to get flattened over.
4. 04Kick your own hips under theirs before you lift. The lift comes from your hips arriving underneath, with the shin finishing the job — not from a quadriceps kick with the hips left behind.
5. 05Fall with the sweep. Lifting while sitting bolt upright fights your own weight; falling toward the shoulder you have connected to turns your body mass into part of the sweep.
6. 06Take the hook out when they stand. A standing opponent with your foot still hooked under their thigh has all the leverage; the hook has become their attachment to you, not yours to them.

Common errors

• ×Lifting with the leg while the opponent's weight is still on their own base, so the hook travels and the opponent does not.
• ×Letting the back round and the head drop below the opponent's, which removes the ability to pull their chest across and makes the hooks purely defensive.
• ×Hooking with the toes instead of the instep and the top of the foot, which gives a smaller and more fragile contact surface.
• ×Holding both hooks symmetrically and waiting, when almost every sweep needs one side to become the working side and the other to stop the return.
• ×Staying hooked in as the opponent stands up out of the guard, which hands them the angle and the leg.

Safety

The hook is your foot placed inside a place where a much heavier body can sit down on it or step over it. The specific risk is a standing or driving opponent who traps that foot and then rotates or moves backwards while your knee stays where it is — the load arrives at the ankle and the knee together, and it arrives faster than you can decide. Take the hook out as soon as they break to standing, and when you are the one on top, step over a hook rather than pinning it and pivoting. Toes are the second risk: instep hooks put toes against thighs and waistbands, which is a common way to catch and jam one.

Training progression

1. 01Static: sit in butterfly with a stationary partner and set both hooks and an underhook. Do not sweep. Just move their weight onto one hook and feel the moment their base leaves their knee.
2. 02Cooperative: partner offers no resistance while you perform the whole sequence slowly — connect, load, kick the hips under, fall toward the underhook side.
3. 03Constrained game: partner resists the sweep but may not pass or stand. You may only work the load, resetting whenever their weight comes back onto their own base.
4. 04Two-direction drill: partner defends one side hard; you take the sweep to the other side. Alternate sides for two minutes so the reaction becomes the entry.
5. 05Positional sparring: partner may pass or stand; you must decide within a second whether to keep or remove the hooks, and the round restarts when they are past your knees.
6. 06Live rounds from seated starts. Count how many sweeps came from a load you built and how many came from a lift you attempted cold.

Related entries

• Connection in open guard
• Inside position