 Florence Griffith Joyner. Flo Jo, she was getting ready for the Olympics. She ran a world record, 10.49, at the Olympic qualifiers on her way to Seoul. Take a listen to this as she killed the 100-meter dash. Gail Devers is in lane four. Lane one is open. And quickly, Florence Griffith Joyner blowing away the field in a 10.49.