Michael Jamieson clinched a silver medal in the 200m breaststroke, with a time of 2:07:43 seconds - the third-fastest time in history.
Michael had set a new British record of 2:08:20 seconds when he qualified for the final alongside teammate Andrew Willis on Tuesday.
Michael swims jointly for the University Swim Team and Bath.He has been training with Team GB at the University's Centre for Sport and Exercise and the nearby Royal Commonwealth Pool.
Katherine Grainger and teammate Anna Watkins broke the Olympic record by nearly five seconds to book their place in the double sculls final, which takes place on Monday 6 August.
Katherine, who started her rowing career while studying law at Edinburgh, is hoping to build on her previous Olympic success.
Katherine is Britain's most successful Olympic female rower.She won silver medals in 2000, 2004 and 2008 and has been a World Champion six times.
Cyclist Sir Chris Hoy MBE , who studied Sports Science at Edinburgh, will compete in two events - the Keirin and Team Pursuit - events in which he took gold at Beijing 2008.
He was also the Team GB flagbearer at the opening ceremony.
4、Craig Benson
Craig Benson, who will begin studying at Edinburgh this autumn, reached the semi-finals of the 100m breaststroke.
The 18 year, who won three gold medals at the Commonwealth Youth Games, will now turn his attention to the Commonwealth Games in 2014, which will take place in Glasgow.
Jim Aitken, Director of Sport and Exercise at the University, said the number of Olympic athletes bore testament to the quality of sports at the University.