Alias · Guard Passing
Log splitter
Also known as Closed Guard Break — Standing — the canonical term used on this site.
Training background: informal — refers specifically to the knee-drop wedge component
Informal — wedging the legs apart like splitting a log
Log splitter is a colloquial name for the standing closed guard break — imagery for wedging the opponent’s locked legs apart the way a wedge splits a log.
Etymology. “Log splitter” is pure gym imagery: the passer’s forearm or knee acts as the wedge driven between the thighs. The name has no lineage beyond the visual metaphor, but vividly captures the prying action of the break.
Mechanics. The wedge is driven into the gap between the thighs and rotated, so leverage builds around the point of contact and forces the ankles apart; the rotation, not raw strength, is what splits the locked guard open.
Cross-reference. “Standing guard break” and “Standing posture break” are sibling aliases. Full mechanical coverage on Closed Guard Break — Standing.