 Starks attended Georgetown Preparatory School in North Bethesda, Maryland where he played for coach Dwayne Bryant.As a freshman in 2006–07, he averaged 10 points, 5 assists and 3 rebounds per game as he led Prep to a 15-10 record, the IAC Tournament Championship and he was named the conference Freshman of the Year.As a sophomore in 2007–08, he averaged 15 points, 10 assists and 5 rebounds per game as he led Prep to an 18-7 record and the IAC Tournament Championship for the second straight year.