Shaunae Miller-Uibo recalls her part in one of the most memorable finishes in Olympic history, when she dove across the line to take 400m gold for the Bahamas at the 2016 Games.
She tells us how she developed the mindset and character to make it to the top and stay there, but also talks about life off the track, and how she switches off from the pressures of racing.
Presented by Scout Bassett, Ed Harry and Eliza Skinner and produced by Joel Hammer for BBC World Service.