Half Guard Pass

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The half guard pass is the general approach to extracting a trapped leg from the bottom player’s half guard and completing to side control, mount, or the opponent’s back. Unlike the smash pass, knee cut, or leg drag — each of which is a specific mechanical technique — the “half guard pass” names the top-level passing task from top half guard. It is the framework within which the specific techniques branch.

The task has three stages. First, flatten the bottom player so that their trapped leg cannot be weaponised into a sweep or back take. Second, win the underhook-vs-whizzer exchange — the upper-body grip fight that determines whether the top player is passing or the bottom player is attacking. Third, extract the trapped leg through one of several branch techniques selected on the bottom player’s response. The pass completes when the trapped leg is free and side control is consolidated.

Understanding the half guard pass as a framework rather than a single technique matters because the correct branch is determined by the bottom player’s response, not by a pre-selected plan. A top player who commits to a specific pass before reading the bottom player’s frame and hip angle will force the wrong branch against the wrong defence. The top player who reads first — underhook-side hip angle, knee shield presence, bottom-leg activity — selects the correct branch in response.

Ruleset context This technique is legal in all major competitive formats.

INV-P01Invariant "The top player must clear the line of the feet before advancing. Attempting to pass while the feet are active is attempting to pass through the guard rather than around it."

Why it works hereThe trapped leg is the half guard player's foot-line connection to the top player's leg, and clearing it is the defining task of this pass. All four branches — smash, knee cut, back step, leg drag — converge on the same objective: extracting the trapped leg. They differ in mechanism but share the requirement; a half guard pass that does not clear the trapped leg is a positional stall, not a pass.

See full invariant page → The trapped leg is the half-guard player’s foot-connection to the top player’s leg. Clearing it is the defining task of this pass. All branches — smash, knee cut, back step, leg drag — converge on the same objective: extracting the trapped leg. The branches differ in how the extraction happens (smash flattens and peels; knee cut slices through; back step clears backward; leg drag redirects laterally) but the feet-clearing task is constant. A half guard pass that does not clear the trapped leg is not a pass — it is a positional stall with the leg still trapped.