Famous as both a specialist football player and an Olympic sprinter, Graddy played out for the Denver Broncos as well as the LA Raiders through the past due 1980s and early 1990s and earned a team precious metal medal in the 4 x 100 meter event on the 1984 Summer Olympics in LA, California. In 1983, while participating in the School of Tennessee, he gained a silver medal along with his nationwide relay team on the Skillet American Games and in addition gained an NCAA name along with his collegiate monitor team. He established an individual record in the sixty meter event at a 1985 competition in Paris, France, and documented his best amount of time in the main one hundred meter dash at a 1984 monitor meet in Knoxville, Tennessee. He spent his start in Gaffney, SC, and his senior high school years in Atlanta, Georgia. He and fellow track star Carl Lewis both won gold medals on the 1984 Olympics. In the 100 meter dash event, Graddy won silver and Lewis won gold.