2 Part Technique - When you feel the opponent reach under your leg for Deep Half Guard, sprawl your leg away from his arm and crossface him back down to the mat with Head and Underhook Control. Capture the now extended arm between your legs with Over Under Control and look to finish with the Over Under Pass. If he is successful in reaching the Deep Half, switch your weight to the knee trapt by his legs and attempt the Leg Over Pass. If he blocks this with his head, use a quick tap to his forehead to generate space for the leg to swing over and secure Underhook and Head Control to finish the pass.