Date: 9/29/1988
Set By: Florence Griffith-Joyner

Flo-Jo was incredibly controversial, considering her record-setting performance shaved a suspicious amount of time off her previous best and she was more than once accused of using PEDs. However, she was also one of the most tested athletes in the history of sports, and never once did she fail. Her absolutely scintillating 200m time from the 1988 Olympics still has yet to be challenged in earnest; the closest anyone has come was Allyson Felix at the 2012 Olympics, and even she was well short with a time of 21.69.