A key member of the Manhattan College track & field team under Hall of Fame Head Coach Fred Dwyer. Alexander set or tied the Jaspers' high jump record at least 10 times indoors and outdoors. His indoor record climbed from 6'10" to 6'11½", while his outdoor record began at 6'8" and reached 7'1 ¾", which still stands as the school mark 32 years later. Alexander was also strong in the pentathlon, setting an indoor record at the Princeton Relays to qualify for the IC4As. He broke the high jump record twice at the 1980 IC4A Championships. Alexander set the Manhattan pentathlon and indoor high jump records in one competition. He scored in eight Metropolitan Collegiate Championships and in six IC4As, placing second in 1979 to U.S. indoor record-holder Franklin Jacobs. Alexander qualified for and competed in many of the grand-scale track events, including the NCAA Championship, the Millrose Games and the 1980 Olympic Trials.