Z-Guard

Last updated: June 13, 2026

What is the Z-guard?

The Z-guard is one of several positions a grappler can use from the bottom of half guard. Half guard itself is the position where the person on the bottom has trapped one of the opponent’s legs between their own. The Z-guard adds a specific leg structure on top of that: the shin of the top leg turns into a frame against the opponent’s hip while the feet stay connected underneath.

Anyone watching modern no-gi grappling hears the position named constantly, because it has become a staple of the competitive bottom game. When a commentator says someone is settling into Z-guard, the bottom athlete is buying space and setting up attacks rather than just trying to survive.

The position matters because it answered a long-standing problem. Bigger, heavier opponents could flatten and pass an ordinary half guard by crushing the defender’s knees together. The connected-feet structure of the Z-guard resists that pressure, which is why it shows up so often when a lighter grappler faces a stronger one.

How the Z-guard works

The defining feature is the frame. The bottom leg hooks deep around the opponent’s near leg, the feet link together below, and the top knee points into the opponent’s hip with the shin acting as a wedge. Because the feet are joined, the opponent cannot simply squeeze the knees shut to collapse the structure, which is the usual way a half guard gets flattened.

The biomechanics are what make it stubborn. As the top player drives into the framing leg, the guard locks tighter onto the bottom player, so the passer burns more energy than the person defending, according to the Wikipedia entry on half guard. That self-reinforcing structure is the whole idea.

Spotting it on video is easy once the frame is clear. The bottom athlete stays on their hip, one shin angled across into the opponent’s hip line, with the feet tucked and connected beneath. That posture is the difference between a controlled Z-guard and a flattened, passive half guard.

Z-guard vs knee shield half guard

People use the two terms interchangeably. Some sources even treat them as the same position, and in casual gym talk, the line does blur. What separates them is where the framing shin sits and whether the feet connect.

Feature	Z-guard	Knee shield half guard
Shin position	Frames low, against the hip	Frames higher, across the chest or shoulder
Feet	Connected or crossed below	Usually not connected
Main strength	Resists the knee smash because the feet are joined	Creates quick distance but collapses if the knees are forced together
Typical role	Holding a structured, locked base under pressure	Buying space and entering other positions

In plain terms, the Z-guard is the sturdier, more locked-in cousin of the knee shield. A basic knee shield can be beaten by forcing the defender’s knees together, while the Z-guard’s connected feet take that option away. This is the single point most newcomers get wrong, so it is worth keeping straight.

Where the Z-guard fits among half guard variations

Half guard has produced a handful of recognisable variations, each defined by what the legs do. The Z-guard is one branch of that family.

• Deep half guard: the bottom player sits directly under the opponent’s hips, the closest range of the group.
• Lockdown: popularised by Eddie Bravo, it places the outside leg over the opponent’s entangled leg instead of the inside leg.
• Knee shield: uses the top shin as a barrier across the body.
• Butterfly knee shield: associated with Gordon Ryan and Craig Jones, it keeps the shielding foot inside the opponent’s thigh, so it works like a butterfly hook.

The Z-guard sits among them as the version built around a connected-feet frame at the hip.

Why it is called the Z-guard

The name comes from the shape the legs make. Bent into a frame, the angled top leg and the connected bottom leg form a zig-zag that loosely resembles the letter Z. The same position carries a second name in some circles, the 93 guard.

Its modern form grew out of decades of half guard development. Roberto “Gordo” Correa is widely credited with turning half guard from a defensive last resort into an attacking position during the 1990s, while he was still a purple belt. The Z-guard variation later became a fixture of high-level no-gi grappling largely through the Australian grapplers Craig Jones and Lachlan Giles, who built much of their competitive games around it.

Frequently Asked Questions

Is the Z-guard the same as the knee shield?

Not quite. They are closely related half guard frames, but the Z-guard keeps the feet connected and frames lower at the hip, which makes it harder to smash than a standard knee shield.

Why is the Z-guard also called the 93 guard?

It is one of the alternate names the position picked up as it spread through no-gi grappling. Both names point to the same connected-feet half guard structure.

Is the Z-guard good for smaller grapplers?

It is popular with lighter grapplers because the connected-feet frame resists the pressure passing that heavier opponents rely on. That is a common reason it gets taught early.

Does the Z-guard work in gi and no-gi?

Yes. The structure depends on leg position rather than grips, so it functions in both, though it is most associated with no-gi competition.

Who invented the Z-guard?

No single person is credited with it. It evolved out of the broader half guard development that traces back to Roberto “Gordo” Correa, and it was popularised at the top level by Craig Jones and Lachlan Giles.

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Sources

1. Evolve MMA. “Complete Guide To The BJJ Z-guard.” Accessed June 2026.
   https://evolve-mma.com/blog/complete-guide-to-the-bjj-z-guard/
2. BJJ Fanatics. “Z guard BJJ” by Benjamin Strusnik. Accessed June 2026.
   https://bjjfanatics.com/blogs/news/z-guard-bjj
3. Wikipedia. “Half guard.” Accessed June 2026.
   https://en.wikipedia.org/wiki/Half_guard
4. BJJ Notes. “What is Z-guard?” Accessed June 2026.
   https://www.bjjnotes.app/knowledge-base/what-is-z-guard
5. MMA Leech. “Z-Guard vs. Knee Shield Half Guard” by Gustavo Gasperin. Accessed June 2026.
   https://www.mmaleech.com/z-guard-vs-knee-shield-half-guard/

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