MANTIS GUARD

The mantis guard is the standing open-guard variant in which the bottom player operates from the knees while the top player stands, with one of the top player's legs controlled at the ankle or pant cuff and the bottom player's posture upright. The position is named for its resemblance to a praying mantis — the bottom player crouched on the knees, hands gripping the opponent's leg like mantis arms gripping prey. It is one of the more recently codified guard variants and emerged primarily through the modern competitive scene in the 2010s.

The mechanics involve the bottom player on the knees with one of the opponent's legs trapped between the bottom player's hands at the ankle or pant cuff, while the opponent stands with the other leg as the base. The bottom player's posture is upright (chest high, hands gripping low) rather than supine like most open guards. From this configuration the bottom player can sweep the opponent by pulling the captured ankle while driving the head into the opponent's hip, can transition to single-leg-X by hooking the captured leg, or can stand up to convert to a takedown attempt. The position is essentially a wrestling-derived single-leg setup adapted to grappling exchanges.

The mantis guard has been used by no-gi competitors with wrestling backgrounds — Garry Tonon, Craig Jones, the Ruotolo brothers — as a way to integrate wrestling single-leg mechanics with grappling sweep and submission mechanics. The position is not as well-codified pedagogically as conventional open guards, and different competitors emphasize different applications (sweep entry vs. takedown entry vs. submission entry). Defensively the mantis guard is countered by sprawling the captured leg back to neutralize the sweep angle, by hand-fighting the wrist grip before it consolidates, or by stepping back to disengage from the position entirely.