Part of a dominant track and field family, he won a gold medal in the triple jump at the 1984 Summer Olympics in Los Angeles.
He attended Arkansas State University, where he was a three-time NCAA indoor champion, and three-time NCAA outdoor champion.
At the 1984 Olympics he won the Jim Thorpe Award, given to the best American athlete in a field event.
He was married to legendary athlete Florence Griffith Joyner.
His sister is Jackie Joyner Kersee, considered by many to be the world's greatest female athlete.