So I danced around with my dukes up and then wound up to punch him as hard as I could in his gut. He ducked into my punch and I hit him as hard as I could in his face (by accident). I dropped the bully in one punch, briefly celebrated my victory and then ran to get in line to go back to class with recess over.
He later got some revenge by punching me as we passed in the hall. From there we called it a draw and had some mutual respect throughout school.