SLX

SLX is the universal grappling abbreviation for single-leg X-guard — the leg-entanglement configuration in which the bottom player’s legs form an X around one of the top player’s legs, with the bottom player using the trapped leg as both a control point and an attack platform.

Etymology. The abbreviation expands to “single-leg X” or “single-leg X-guard,” distinguishing the configuration from the broader X-guard (which engages both of the top player’s legs). The term emerged in the modern leg-entanglement era of submission grappling, when the Danaher-influenced systems formalised the position naming. SLX parallels the same compression pattern as DLR (De la Riva), RDLR (reverse De la Riva), and other guard-system abbreviations that came into use as the no-gi leg-entanglement game matured. The Japanese-derived ashi garami — “leg entanglement” — is the canonical name on this site and remains in use in legacy judo and submission grappling vocabulary.

Mechanics. The configuration isolates one of the top player’s legs by trapping it inside the bottom player’s crossed-leg X, creating a high-control entry point for ankle locks, heel hooks, and sweeps. Inside-space control is the position’s defining property — the trapped leg cannot rotate or post out of the entanglement while the bottom player’s hip remains close to its centreline.

Cross-reference. Full term is “single-leg X-guard”; judo uses ashi garami. Full mechanical coverage on Ashi Garami.