Florence Griffith Joyner
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Born
FloJo's 1988 season produced the 100m and 200m world records that still stand: 10.49 at the US trials and 21.34 at the Seoul Olympics. The 100m mark is debated because of the wind reading at the time, and her sudden improvement drew suspicion, though she never failed a test. Technically, watch her 200m in Seoul: an unusually long, powerful stride and an upright, relaxed finish that left a world-class field well behind.
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