On a freezing Massachusetts morning in 1967, nineteen-year-old Kathrine Switzer illegally entered, ran and finished the Boston Marathon, which was at that time a men-only race. Switzer was studying journalism, and running ten miles a night. Like many women athletes in the late 1960s, she trained with the men’s team, because there was nothing on offer for her. Her coach often regaled the entire team with stories of success at Boston, which he had run fifteen times, until Switzer insisted that she was good enough to run the twenty-six miles. ‘No dame has ever run Boston,’ he would reply.