Queen's Baton Relay: The secret of Jamaica's sprinting success
Jamaican sprinting superstars Usain Bolt, Yohan Blake and Shelly-Ann Fraser-Pryce are part of a proud Olympic record that stretches back 50 years.
During the 1960s, Jamaican athletes were growing up through the prestigious high school 'Champs' before gaining scholarships in America to pursue their careers on the track.
Dennis Johnson, Jamaica's first 100 yards world record holder, had a dream of developing world class athletes at home and helped to establish a sprinting training programme.
As the Queen's Baton Relay arrived in the country, BBC reporter Mark Beaumont discovered how decades of planning have helped to produce some of the world's top sprinters.
19 Apr 2014