Katherine Grainger and Anna Watkins win gold in the women's double sculls final.
Meanwhile, in the Velodrome this evening ....
Team GB shattered their own world record as they defended the men's Olympic pursuit title to win Friday's second gold medal for Britain. The quartet of Ed Clancy, Geraint Thomas, Steven Burke and Peter Kennaugh clocked three minutes 51.659 seconds to knock nearly a second off the world record they set in qualifying.
Victoria Pendleton wins cycling gold for GB in women's keirin.