Spencer was the starting quarterback for Montgomery Bell from 2007-2008. As a starter, he had a record of 23-2 and was 3-0 versus Brentwood Academy. In 2007, Spencer led Montgomery Bell to a 13-0 undefeated season, culminating in a 12-0 victory over Brentwood Academy in the State Championship. In his senior year, he threw for over 2,000 yards and 21 touchdowns, while being selected as a Mr. Football Finalist.