Foundations Stage 10 — Leg Entanglement Expansion Study Guide

CurriculumFoundations Stage 10 — Leg Entanglement Expansion Study GuideLeg entanglement expansion — ashi-garami variations, inside sankaku, cross-ashi. Why heel hooks remain gated, how grip chains set up entanglements, and…

Stage 10 is the final stage of the foundations curriculum. It expands the leg-entanglement positional vocabulary introduced in stage 9 without introducing heel hooks. This study guide explains the positions taught, the invariants that make them safe, and the gating into the developing curriculum.

Stage 10 teaches leg-entanglement positions, not submissions. The straight ankle lock from stage 9 remains the only leg-lock submission permitted at foundations level. What the student learns here is how to reach and control more of the ashi-garami family — because controlling those positions is a prerequisite for using them safely when heel hooks are introduced at developing level.

This ordering reflects positional advantage precedes submission again — position before submission. Foundations students learn the full positional map of leg entanglements before they learn the submissions that live in those positions. The result is that when a student reaches developing-level heel hooks, they already know the positions cold.

Entry to stage 10 requires completion of stage 9’s gating criteria:

Immediate tapping demonstrated in live leg-lock sparring.

Verbal explanation of inside space control and heel exposure by position.

A coach who has not seen these criteria met does not progress the student to stage 10. The stage 9 study guide covers the full gating protocol.

Stage 10 adds these positions to the student’s vocabulary:

Ashi-garami variations — single-leg ashi, outside ashi, and the transitions between them. The seated ashi-garami from stage 9 is the starting point; the variations expand the control options.

Inside sankaku — the inside triangle configuration, which is the entry position for several developing-level submissions. At stage 10 it is taught as a control, not as a submission platform.

Cross-ashi (introduced as a position only) — the student learns what cross-ashi looks like and what control it represents, without attempting any of the submissions it unlocks. The submissions are developing-level content.

Entries to leg entanglements — entries from butterfly guard, half guard, and passing transitions. These are the grip chains that set up the position family.