Board Thread:Naruto Discussions/@comment-3279282-20140828133937/@comment-18497248-20140829021530

Jashin Uchiha wrote: Kakashi and Zabuza are both 26 in Part 1. Zabuza was 9 when he graduated the academy under Yagura's rule. Kakashi had made Jonin by the time he killed Rin, he graduated the academy at 6, he didn't make Jonin before Zabuza turned 9. It was after Yagura's reign that he Rin became a Jinchūriki. Except it's shown in story that she became a jinchuriki before Yagura. As Obito took control of Yagura and manipulated Kiri while he was still a jinchuriki, years after her death.