Today in Sports History: Jamaica’s Usain Bolt claims consecutive gold medals

In 2012, Jamaica’s Usain Bolt claims consecutive gold medals in the marquee track and field event at the Summer Games in London. Only about fifth-fastest of the eight runners to the halfway mark, Bolt erases that deficit and overtakes a star-studded field to win the 100-meter dash final in 9.63 seconds, an Olympic record that lets him join Carl Lewis as the only men to win the event twice.