A profile of 101-year-old marathoner Fauja Singh.

Captain Iván Castro, who lost his vision in Iraq, runs the Boston Marathon.

On champ-turned-coach Alberto Salazar and the New York City Marathon.

He rose from poverty to fame as a marathon champion at only 23. But was his fall from a balcony outside of Nairobi murder, accident, or suicide?

A jogging buddy collapses during a marathon, his heart suddenly finished beating. The writer goes looking for answers.