On April 21, 1980, Rosie Ruiz crossed the Boston Marathon finish line with a record-shattering 2:31:56, the fastest female time in race history at that point. Yet she wasn't panting, barely sweating, and seemed completely unfazed by the supposed 26.2-mile run. This episode dissects one of the most audacious cheating scandals in sports history and the psychology that let a lie spiral out of control in the analog, honor-system world of 1980s marathon racing.

We trace Ruiz's path from a fabricated brain cancer claim to enter the 1979 New York City Marathon, to her infamous subway ride that accidentally qualified her for Boston, to the elite runners and Harvard student witnesses who dismantled her story. We explore the halo effect that blinded officials, the smoking-gun resting heart rate of 76, and the grim irony of a life that ended in 2019 f ...