Lockdown

Last updated: June 3, 2026

What is the lockdown?

A grappler playing half guard already controls one of the opponent’s legs between their own. The lockdown takes that control a step further. Instead of simply clamping the legs together, the bottom player crosses their feet, hooks the opponent’s trapped foot, and extends one leg to drive that foot away. Wikipedia lists it as a child position of half guard, alongside the dogfight, knee shield, and deep half guard.

The position belongs to 10th Planet Jiu-Jitsu, the no-gi system founded by Eddie Bravo. Bravo, a black belt under Jean Jacques Machado, named the move so his students could talk about it with a shared vocabulary, though the underlying leg weave existed before he labeled it. BJJ Heroes credits his run at the 2003 ADCC championship, where he submitted Royler Gracie, as the moment the wider grappling world started paying attention to his ideas.

What the lockdown buys the bottom player is time and leverage. A heavier opponent who has flattened someone out and started grinding through a pass suddenly finds their base leg stretched and pinned. That stalls the pass and takes weight off the chest, giving the person on the bottom room to start hunting reversals. RollBliss describes it as a way to immobilize an aggressive opponent and disrupt their passing.

How the lockdown works

Picture the bottom player on their side in half guard. One of their legs is already wrapped over the opponent’s leg. To finish the lockdown, the second leg threads under and hooks the opponent’s foot, forming a figure-four with the grappler’s own legs. From there, the bottom player extends, pushing the trapped foot down and away from their own body.

That extension is the whole point. A straightened leg is much harder to retract than a bent one, so the opponent struggles to free the foot or square their hips to pass. The position also works on leverage rather than strength, which is why smaller grapplers tend to like it against larger opponents.

The lockdown is rarely the finish itself. Once it is set, the bottom player elevates the trapped leg and chains into sweeps, most famously the electric chair, a sweep-and-submission sequence Bravo built around the position.

Lockdown vs traditional half guard

The two positions share a starting point, so newer grapplers often blur them together. The difference comes down to what the legs are doing.

In standard half guard, the bottom player’s legs usually sit on the outside of the opponent’s trapped leg, holding it in place. In the lockdown, the legs move to the inside and interlace into the figure-four, then extend. BJJ World frames it this way: a regular half guard holds the leg, while the lockdown weaves through it and stretches it out.

Feature	Traditional half guard	Lockdown
Leg position	Legs typically on the outside of the trapped leg	Legs intertwined on the inside in a figure-four
Main goal	Hold the leg, recover guard, or sweep	Stretch and pin the leg to stall the pass
Mobility	Bottom player keeps more freedom to move	Both players are more committed and locked in
System	Used across most BJJ styles	Tied to 10th Planet and no-gi grappling

A common coaching note is that relying only on the lockdown can be limiting. Many instructors want students comfortable in knee shield and deep half guard too, so they are not stuck when an opponent shuts the lockdown down.

Is the lockdown dangerous?

The lockdown has a reputation. In Brazil, it is sometimes called the scorpion, and plenty of traditional grapplers consider it risky enough to avoid. The concern is real but specific.

Mike Piekarski, a doctor of physical therapy and BJJ black belt, explained the mechanics in an interview with BJJEE. When the bottom player straightens their legs for control, the motion puts valgus stress on the top player’s knee while also rotating it inward. On its own, that force is manageable. The danger appears when the top player resists and tries to muscle out, which loads the anterior cruciate ligament and medial collateral ligament in a way the knee is not built to handle.

Piekarski notes that injuries from the position are rare rather than routine. His advice to the top player is to move with the pressure instead of fighting it, and to give up the sweep if that is what it takes to protect the knee. The electric chair carries a bit more risk because it adds a groin stretch on top of the knee rotation. Used with control between training partners who know the position, the lockdown is no more hazardous than most leg entanglements in modern grappling.

Frequently Asked Questions

Who invented the lockdown?

Eddie Bravo popularized and named it as part of 10th Planet Jiu-Jitsu. The leg weave itself predates him, but he built the surrounding system of sweeps and submissions and gave it a name.

Why is the lockdown called the scorpion?

Scorpion is simply the common Brazilian name for the position, and judo has a comparable entangled-leg configuration called niju garami.

Is the lockdown legal in competition?

The position itself is legal across major rulesets. The submissions it leads into, such as heel hooks and calf slicers, are restricted in many gi and IBJJF divisions and allowed in many no-gi and submission-only events, so it depends on the ruleset.

Is the lockdown good for beginners?

It is fairly easy to establish, which makes it a useful stalling and survival tool early on. Attacking effectively from it takes more experience, and many coaches recommend learning standard half guard variations alongside it.

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Sources

1. Wikipedia. “Half guard.” Accessed June 2026.
2. BJJ Fanatics. “Lockdown BJJ.” Accessed June 2026.
3. BJJEE. “Lockdown Position: Unexpected Knee Injuries Explained by BJJ Black Belt/Doctor.” Accessed June 2026.
4. BJJ Heroes. “Eddie Bravo.” Accessed June 2026.
5. BJJ World. “3 Ways of Passing the Half Guard Lockdown.” Accessed June 2026.
6. RollBliss. “How to Use the Lockdown Position in Half Guard.” Accessed June 2026.
7. Jits Magazine. “Throwback: Eddie Bravo Defeats Royler Gracie at ADCC 2003.” Accessed June 2026.

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