Brillian Bolt clinches relay gold for Jamaica

Usain Bolt brought the track action at London 2012 to a fittingly brilliant close tonight, anchoring the Jamaican 4x100m relay team to gold in a new world record.

Bolt was only level with American Ryan Bailey when he took the baton after the first three legs run by Nesta Carter, Michael Frater and Yohan Blake, but stormed down the home straight to stop the clock at 36.84 seconds, taking 0.2secs off their previous record.