Miller lives in Baltimore, Ohio, and attended Liberty Union High School.[1] He committed to play college baseball at Louisville as a freshman in high school.[2] As a junior, Miller went 9–1 with 143 strikeouts and a 0.70 ERA in 60 innings pitched.[3] He was named the Ohio Gatorade Player of the Year in his senior season after going 9–1 with 133 strikeouts in 57 innings pitched.[4][5] He was also named the All-Metro Player of the Year by the Columbus Dispatch.[6] Miller also played basketball and ran track at Liberty Union.[7] He was rated the best prospect for the Major League Baseball (MLB) draft in the state of Ohio.[8]
Professional career
Miller was selected by the Miami Marlins with the 46th overall pick of the 2022 MLB draft.[9][10] He signed with the team and received a $1,679,900 signing bonus.[11]