World Record 4x100 metres relay, Jamaica, 37.04 sec, Daegu, IAAF WC 2011, final round - YouTube

https://www.youtube.com/watch?v=9pFgIKGpUAM

World Record 4x100 metres relay, Jamaica, 37.04 sec, Daegu, IAAF World Championships Athletics 2011, final round, 4th September 2011, German TV 1 - 37.04 - J...