Day 15 of the 2012 Olympic games ended on the track, fittingly, with Usain Bolt and the Jamaican 4×100 relay team, beating the United States and setting a new world record with 36.84. The American’s did take gold in the 4×400 relay while Mo Farah completed a double of his own, becoming the 7th man to win the 5000 and 10,000 meters races.