In summer of his freshman year, he batted second, fielding at short in the 92nd Japanese High School Baseball Championship.

In spring of his senior year at the 84th High School Baseball Invitational Tournament, Mizowaki once again lead-off fielding at short stop.

In the second game, his team lost 3–5 to eventual winners Osaka Tōin High School led by ace, Shintaro Fujinami.

[3] On 26 August 2014, Mizowaki made his professional debut against the Yokohama DeNA Baystars fielding at short stop at batting 8th in the order.

On 4 April 2017, Mizowaki hit his first professional homerun against Hiroshima Carp pitcher Yusuke Nomura as a pinch-hitter for Shunta Wakamatsu at Nagoya Dome.