Tate-shiho-gatame escape by clamping and rolling
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Escapes (getting out from underneath)

Being held astride is the hardest hold to escape and the most important to learn, because it is where a lock or a strangle usually follows. Clamping an arm and a leg on the same side removes their base on that side, and the bridge does the rest.

Key points
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- Clamp an arm and a leg on the SAME side
- Bridge high, then turn towards the clamped side
- Keep your own elbows in so they cannot isolate an arm

Step by step
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1. You are held in Tate-shiho-gatame, your partner astride your waist with their knees tight to your sides.
2. Keep both of your elbows in against your ribs so neither arm can be isolated for a lock.
3. Trap one of their arms against your chest with both hands, thumb side up.
4. Bring your foot up on the same side and clamp their leg with your own, so their base on that side is gone.
5. Plant your other foot flat and bridge hard, driving your hips up and over the clamped side.
6. Turn into the clamped side as their weight tips and come out on top or in your guard. Release their arm as you arrive.

From the other side
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The instant an arm and a leg are clamped on the same side, you have no base there. Post your free hand wide on the mat past their head, sit up tall and take your weight off their chest before the bridge comes.

VI judo notes
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Everything here is contact-based. The rule to remember is same side: the arm you clamp and the leg you clamp must be on the same side of your body, or the roll has somewhere to go. Feel for both before you bridge.

The techniques involved
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- tate-shiho-gatame

From Waza Book: https://wazabook.com/skills/tate-shiho-gatame-escape-clamp-and-roll/