In 1970–71, Dennis played on the
Syracuse Orange freshman basketball team. He averaged 19.2 points and 7.7 rebounds per game. Dennis joined the Syracuse varsity basketball team his sophomore season, and averaged 15.8 points and 4.8 rebounds per game. Dennis led Syracuse in scoring his junior season, averaging 19.6 points per game. He also led Syracuse in scoring his senior season, averaging 20.6 points per game. In his senior year at
Syracuse University, Dennis was selected to the NCAA AP All-American third-team. When he graduated, he was second all-time in points for Syracuse behind only
David Bing. ==Professional career==