It was the third gold medal of the day for Team GB. Earlier, Britain's dressage team of Carl Hester, Laura Bechtolsheimer and Charlotte Dujardin trotted to a historic victory over Germany.
And the Brownlee brothers raced to Olympic glory in one of the most dramatic races yet at London 2012. Alistair Brownlee took gold in the triathlon and his brother Jonny won bronze despite being given a 15-second penalty.
As he closed in on victory Alistair grabbed a Union flag from the crowd, wrapped it around his shoulders and walked triumphantly across the finish line in Hyde Park. He waited to embrace his brother who overcame the penalty given for mounting his bike too quickly after swimming the Serpentine.
There was further success in Weymouth as Nick Dempsey took silver in the men's windsurfing.
But Phillips Idowu, the controversial 33-year-old Beijing silver medallist, crashed out of the triple jump when he failed to jump far enough to qualify for Thursday's final.