( CNN ) -- Usain Bolt , the anchor of Jamaican sprinting success for the past six years , led his 4x100m relay team to a new world record and in the process picked up his third gold for the second successive Olympic games . He pulled away from Team USA anchor Ryan Bailey about half way through the final leg to cross the line in a time of 36.84 seconds , beating the previous record of 37.04 seconds . The Jamaican team seemed to show no concern that regular anchor Asafa Powell was missing through injury , as they eased up through the gears and ensured some perfect baton changes to keep in their destiny in their own hands . The crowd cheered not only a perfect end to Jamaica 's campaign but also a great end to all the action within the Olympic stadium . And Bolt was celebrating with them , doing the 'Mo-Bot ' -- copying the celebration of British athlete Mo Farah , who completed a Olympic double earlier in the day winning the men 's 5,000m as well as the 10,000m earlier in the week -- as he followed his 100m and 200m golds with a relay victory . Bolt has now won seven out of eight of the major athletics competitions , only missing out on a World Championship 100m title in South Korea due to a false start . The United States claimed silver in a national record of 37.04sec , which matched the previous world record . Meanwhile , Canada 's team of Jared Connaughton , Gavin Smellie , Oluseyi Smith and Justyn Warner crossed the line in third , but were disqualified after Connaughton ran outside his lane on the third leg . The bronze was given to Trinidad and Tobago .
4x100m team of Carter , Frater , Blake and Bolt post World Record time of 36.85 secs . Usain Bolt wins three gold medals for the second successive Olympic games . Team USA second at 37.04 secs after Bolt pulls away in the final leg of the race . Canada are disqualified after the race and the bronze medal is given to Trinidad & Tobago .