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Step 1
Clench your opponent's leg between your legs. This can be done from many positions. To perform a basic ankle lock, the bottom of your opponent's foot must face you and his toes must point up. This can be achieved when you are both sitting with legs stretched out toward each other. Fighters often find themselves in this position while grappling or after a failed takedown. Press your knees together on your opponent's leg.
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Step 2
Place the foot of your outside leg on your opponent's hip. Turn your toes outward so that your Achilles tendon is protected. This is important--this way, your opponent can't perform an ankle lock on you. Push on his hip with your foot. This prevents your opponent from moving toward you.
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Step 3
Reach around the outside of your opponent's ankle and bring your hand up between his feet. Use the foot on the opponent's hip to push back so your arm is as low on his ankle as possible. His foot should prevent you from moving any further down.
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Step 4
Reach across your body with your other hand and place it on your opponent's shin. Slide it down toward his foot until your body stops you from moving it any further down.
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Step 5
Grab your own wrist. Use the hand wrapped around your opponent's ankle to grab the wrist next to the hand on your opponent's shin. You have now locked your arms for the ankle lock.
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Step 6
Turn the ankle lock. Do this by squeezing your knees together, pressing your elbows to your sides and arching your back. This makes your forearm cut into your opponent's Achilles tendon. He will experience extreme pain instantly. Most fighters will submit right away rather than endure this pain.
