After beginning his track and field career in the 110m Hurdles and the 400m races, Moses turned to the 400m hurdles and skyrocketed to fame. As a Morehouse College junior, Moses qualified to the U.S. team that competed in the 1976 Montreal Olympics, setting a world record 47.63. Moses won the 1977 Division III meet in a championship record 49.59. In addition, he earned second title in 1977 by winning the 110m hurdles in 13.8. Moses went on to a stellar international career, winning 122 consecutive 400m hurdles races between September 1977 and June 1987, including a second Olympic Gold medal in the 1984 Los Angeles Olympics and two World Championship gold medals in 1983 (Helsinki) and 1987 (Rome). Moses ran sub-48 seconds in the 400m hurdles a total of 27 times. Moses holds the NCAA Division III all-time record of 47.75 set in 1977.