America’s Michael Phelps overcame a shaky start to edge out rival Chad le Clos and take gold in the men’s 100m butterfly final in London on Friday.
In the final individual race of his career, the 27 year old came from seventh at the turn to outclass his rivals and triumph in a time of 51.21 seconds.
This win sees him join his American team mate Missy Franklin as the only triple gold medallists in London after she destroyed the field in the 200m backstroke to set a new world record.
Elsewhere, Great Britain stormed to a second successive gold medal in the men’s team pursuit, breaking their own world record with a time of 3:51.659.
The British quartet of Ed Clancy, Geraint Thomas, Steven Burke and Peter Kennaugh proved too strong for their opponents and sealed their place in history with a convincing win over Australia.
New Zealand beat Russia to the bronze medal in a time of 3:55.952.
Britain’s Katherine Grainger finally struck gold when she powered to victory in the women’s double sculls with partner Anna Watkins at Dorney Lake.
Grainger, who took silver at Sydney, Athens and Beijing, looked in great shape as she and Watkins put in a commanding performance to beat Australia by three seconds, with Poland nine seconds further back.
World number one Roger Federer edged out Argentina’s Juan Martin Del Potro in 4 hours, 26 minutes to reach the Olympic men’s singles final at Wimbledon.
The 30-year-old, who registered a 17th grand slam title last month on the same Centre Court, held his nerve to win 3-6 7-6 19-17 in the longest tennis match in Olympic history.
Federer will next lock horns with Britain’s Andy Murray after he downed Novak Djokovic 7-5 7-5.
France’s Teddy Riner defeated three-time Russian world champion Alexander Mikhayline on penalties to clinch the men’s plus 100-kilo class.
Germany’s Andreas Toelzer earned a bronze medal as he downed Ihar Makarau of Belarus. He was joined on the podium by Brazilian third seed Rafael Silva.