From the opening seconds it was clear that Nakazawa was too quick and too smooth for Leon, with the movement preventing Leon from ever getting close and potentially roughing up the Japanese fighter. It was a good gameplan, especially given the way Nakazawa was walked down last time out, but it did seem like he was afraid of putting his full weight behind a shot and he never seemed to actually hurt Leon, who had been stopped 10 time previous to this bout.
With Nakazawa so comfortable boxing and moving their was no drama in the bout and instead of putting his foot on the gas late he seemd comfortable to cruise to a decision win, with cards of 80-72, twice, and 79-73.
After the bout Nakazawa looked pretty much unmarked whilst Leon had swelling and bruising around his left cheek, though the visitor did say that he never felt the power of Nakazawa and that it was mainly the speed that bothered him, something that seemed obvious to those watching.
(Image courtesy of boxmob.jp)