|High School:||IMG Pendleton/Stetson Univ|
O’Neill played his high school career at IMG Academies where the team was ranked sixth in the nation with a record of 31-1. As a pitcher for IMG, he went 8-0 with a 2.40 ERA. He was invited to participate in the Diamond Club event at Lakeland, Fla. Last year, O’Neill played for the Stetson University Hatters where the team won the A-SUN conference and played South Carolina in regional action. As a freshman, O’Neill threw 20 innings with 21 strikeouts. He played in the FCCAA Sophomore state All-Star game. He is pursuing an associate degree at SCF.