Hardiman played for the
Trenton Cathedral High School. Where he averaged 17 points and 19 rebounds. He was selected in the New Jersey All-State team, All-Diocese first team and he was selected for the All-Tournament team in the Capitol City Tournament. He declined an offer from the
Georgetown University and selected the
Canisius University. {| class="wikitable sortable plainrowheaders" style="text-align:right;" ==References==