Watts studied at the University of Southern California, where he was not only an excellent athlete but also a football player. While at high school he was a good basketball player. At the start of his training as a sprinter, he first specialized in 100 and 200 meters, but his coach John Smith persuaded him to 400 - meter distance, where he also celebrated his success. At the World Championships 1991 he reached the 4 x 400 - meter relay number two and number one in 1993.
At the 1992 Olympics in Barcelona, Spain, he was undercutting in the semifinals of the 1968 drawn up by Lee Evans Olympic record and won the final with a new Olympic record in 43.50 s, which for him meant the gold medal, silver medal went to the previous Olympic champion Steve Lewis and bronze at the Kenyan Samson Kitur. Another gold medal he won with the team at the 4 x 400 - meter relay with his teammates Andrew Valmont is Michael Johnson and Steve Lewis, before the teams from Cuba ( silver ) and Great Britain (bronze). At the Olympic Games in Atlanta in 1996, he came to various injury problems no longer used.