Fanny Blankers-Koen first competed in the Olympics in 1936, winning four gold medals in the 100-meter sprint, 200-meter sprint, 80-meter hurdles, and 4x100-meter relay. She was the first woman to win four gold medals in a single Olympic Games.
The Empowering Journey of Fanny Blankers-Koen: Triumphs at the 1948 London Olympics