Yotsubai escape

Yotsubai escape is the judo-derived name for the defence sequences from the turtle position — the four-point posture in which the defending player is on their hands and knees with the attacker working from the back.

Etymology. Yotsubai (四つん這い) is the Japanese term for the four-point quadruped posture — the position assumed by someone on their hands and knees. The term predates competitive judo and is general-purpose Japanese vocabulary, but it entered judo and grappling instructional language as the standard label for the defensive ground posture that became formalised as “turtle” in BJJ and English-speaking no-gi. The escape term covers the recovery sequences from this position back to guard, standing, or a more neutral structure.

Mechanics. The escape’s priority is preventing the attacker from securing the back-position hooks or seatbelt grip before the defending player can rotate out of the turtle. The defending player must either roll under to recover guard, post a leg out to stand up, or use a granby-roll sequence to come up from inversion — each requires generating motion before the attacker locks in the back control.

Cross-reference. English-speaking no-gi uses “turtle escape” or “turtle defence”; wrestling uses “front headlock defence” for the standing-context overlap. Full mechanical coverage on Turtle Escape.