Alias · Escapes & Defence
Mounted sankaku jime escape
Also known as Mounted Triangle Escape — the canonical term used on this site.
Training background: Japanese — triangle choke from mount
Japanese — 三角絞 mounted-triangle strangle escape
Mounted sankaku jime escape is the judo-derived name for the defence against the mounted triangle — the strangulation applied from the mount position in which the attacker’s legs close around the opponent’s neck and one arm.
Etymology. Sankaku (三角) means “triangle”; jime (絞) means “strangle.” The “mounted” descriptor specifies the entry position — distinct from the guard-position triangle (sankaku jime without the “mounted” prefix). The mounted variant is documented in modern judo and submission-grappling instructional vocabulary, where the technique grew in adoption through MMA and submission-only competition; the underlying sankaku jime terminology has been in continuous use across the Kodokan shime-waza catalogue. The escape term combines the position prefix with the parent technique’s Japanese name.
Mechanics. The escape’s priority is preventing or undoing the figure-four leg closure that traps the neck-and-arm complex. The defending player must either prevent the legs from locking by managing the attacker’s leg position or, once trapped, free the trapped arm to relieve the bilateral compression on the carotid arteries before the strangle reaches structural failure.
Cross-reference. English-speaking no-gi uses “mounted triangle escape.” Full mechanical coverage on Mounted Triangle Escape.