As soon as you get him in this position you must immediately sit up
. When you do sit up on this position it is important with your right hand to hold him across his lower back to prevent him from rolling out which is the most common escape from uma plata. You must still maintain grip of his sleeve on his Bjj Gi. You are not done yet. Now lean forward keeping your weight down on him to prevent his movement and to finish the submission slowly try to get your right knee touching the mat. Be sure to do this slowly as it is very effective. And there you have it, you have just learned how to do the Uma Plata, a great submission in Brazilian Jiu Jitsu.