Brock was a three-year, two-way start for the William Floyd Colonials and captain his junior and senior years. He was a key element in a Long Island record of a 33-game winning streak. During his career while facing Pat-Med he scored a total of 8 touchdowns. Brock won the Hansen Award and best defensive back in Suffolk County in 2007. Brock played his whole high school career without a loss and led Floyd to three consecutive Long Island Class 1 football Championships and 3 Rutgers Cups. Brock went on to Hofstra and then to Stony Brook leading the Big South in all-purpose yards and listed in the Top 10 in all-purpose yards in FCS Division 1 football. He went on to lead Stony Brook to win 2 Big South Championships and was an All-American.