Reviewed by the BJJ Sportswear Editorial Team for technical accuracy and kept current.
Deep half guard sits you underneath your opponent's center of gravity instead of fighting it. Here is the entry, the core sweep, and the risks of playing there.

Deep half guard is a variation of half guard where you slide all the way under your opponent's hips instead of staying beside them. Their trapped leg sits over your shoulder, your head tucks under their body, and you are now positioned directly beneath their center of gravity rather than fighting it from the side. Jeff Glover made the position famous, and it remains one of the best tools a smaller grappler has against a much larger one.
Most positions ask you to out-muscle or out-leverage your opponent's weight. Deep half does the opposite — it uses their own base against them. Once you are underneath their hips, lifting them off balance takes far less strength than sweeping from beside them, because you are working with gravity and their center of mass instead of against it.
Deep half is not without downside. If the top player stacks you hard and you cannot recover your underhook, you can get flattened and passed cleanly. Worse, stalling too long underneath without attacking can hand the top player your back once they free their trapped leg. Attack promptly, or transition — deep half rewards decisiveness, not patience.
Base wide immediately rather than letting your hips get elevated. Post your free hand on the mat on the trapped-leg side to stop the lift before it starts, then work to free your leg by rotating your knee down and away from your opponent's shoulder rather than pulling straight back.
A stalled sweep from deep half often converts directly into the truck by transitioning out the back door instead of finishing on top — one of three common entries into that position. Our half guard guide covers the full system this variation belongs to.
Standard half guard controls a trapped leg from beside your opponent. Deep half slides your head and shoulder all the way underneath their hips, positioning you directly under their center of gravity for a different set of sweeps.
The core sweep from deep half guard, where you elevate your opponent's trapped leg on your shoulder like a tray on a waiter's hand while controlling their far leg to prevent them from re-basing.
Yes, more than standard half guard. Getting stacked flat can lead to a clean pass, and stalling too long underneath without attacking can hand the top player a back take once your leg comes free.
Because it uses the opponent's own base against them rather than requiring you to out-muscle their weight — lifting someone off balance from directly underneath their hips takes far less strength than sweeping from the side.
Founder & Editor, BJJ Sportswear
Mohsin has trained Brazilian Jiu-Jitsu for six years at Gracie Barra and has competed at IBJJF-affiliated tournaments. He writes about competition, gear, and athlete careers, and founded BJJ Sportswear to help grapplers find equipment and information they can trust.
This article was last reviewed and updated on 2026-08-18.