At the 1988 U.S. Olympic trials, amid howling wind that tore the track apart, Florence Griffith Joyner ran a 10.49 in the 100 meters as the wind gauge inexplicably read zero. This deep dive looks beyond the records and iconic one-legged outfits to trace how a bank teller from the Watts housing projects became an untouchable global icon known as Flo Jo.

We follow her from weekend youth meets and financial hardship through an Olympic boycott and 1984 silver medal to a radical biomechanical overhaul under coach and husband Al Joyner. Her stunning 1988 season triggered intense doping scrutiny she never failed a test for, and her early death at 38 was later explained by a congenital brain condition.

• How heavy squats and lunges turned her legs into hydraulic presses
• Her asymmetric outfits and long nails as psychological armor ...