Naruto and Iruka have been bbuddies for a long time, but in this battle Iruka’s a bit doomed. He just didn’t have a chance against someone as powerful as Naruto! Naruto has the Rasengan and with it he’s been shown to take down far stronger opponents. Iruka may have been his sensei in the past, but Naruto surpassed him ages ago. Iruka just didn’t have the skills to take down someone like Iruka. Naruto wins.