Marcus Soares demonstrates a basic attack from the guard: Closed Guard to Kimura
Photo 1 – In Brazil this sequence is often taught as one of the most basic attacks from the guard. You start with your opponent in the closed guard and a grip on his sleeve and lapel.
Photo 2 – With your sleeve grip you pull your opponent’s hand to the ground. At the same time you open your guard, escape your hips, sit up and reach over his tricep with the hand that had been on his lapel.
Photo 3 – Reach your second hand over and through his arm and grab your own wrist. It is very important to have his arm, especially his upper arm, trapped tight against your chest.
Photo 4 – Now, with his arm firmly trapped, keeping his hand well away from his body (so it will be harder to defend) escape your hips out to the side of his trapped arm. The act of escaping your hips is the most important part of this move. Scissor his body with your legs, keeping your calf firmly pressing down on his lower back – this keeps him from rolling. To apply the lock from here you do two things: A) move his elbow towards his head – this takes all the slack out of the system, B) try to bring his hand to the back of his head. Unless he is made of cooked spaghetti you now have him trapped in the Kimura lock.
For more information on the Kimura submission (and Marcus Soares) check out the Mastering the Kimura article on this site.