Gault was part of a world record-setting 4 × 100 meter relay team (1. Emmit King, 2. Willie Gault, 3. Calvin Smith, 4. Carl Lewis) at the 1983 World Championships. He also competed in the 110 meter hurdles and attended the Liberty Bell Classic, where he won a bronze medal in the 100 meter race). He made the 1988 Winter Olympics bobsledding team as an alternate. His personal bests are 13.26 seconds in the 110 meter hurdles and 10.10 seconds in the 100 meters.