Keirin gold for Pendleton
Victoria Pendleton claimed Great Britain's third gold medal in two days of Olympic competition with a stunning triumph in the keirin on Friday.
Moments after watching Ed Clancy, Geraint Thomas, Peter Kennaugh and Steven Burke clock a world record three minutes 51.659 seconds to triumph by a supreme margin ahead of arch-rivals Australia, Pendleton delivered in her least favoured event.
In the event which begins behind a motorised Derny bike, the 31-year-old from Stotfold, who is set to retire after London 2012, stormed to victory. Guo Shuang of China was second, with Lee Wai Sze of Hong Kong third.
The win sparked jubilant scenes from coach Jan van Eijden, British Cycling performance director Dave Brailsford and head coach Shane Sutton and was Britain's third gold medal of the track programme after Sir Chris Hoy, Philip Hindes and Jason Kenny won the men's team sprint on day one.
"I can barely believe it right now," Pendleton told BBC1. "It was really hard with the excitement of the great job the girls did qualifying with a world record and then the guys smash the world record and win a gold medal - I was just, like, 'focus, Vic, focus. You've still got a race'.
"But it was so hard. I can't believe it.
"Thank you so much to everyone who's helped me get here. The crowd have been fantastic and it really helped me today."
It was Britain's third success from four events, and Pendleton's second gold after her Olympic sprint title in 2008 - continuing an eventful final competition for the multiple world champion.
Along with Jess Varnish, Pendleton was eliminated from the two-woman, two-lap team sprint for a takeover infringement on day one of the track programme, leaving the duo in tears.
But Pendleton, who last won the keirin world title in 2007, responded in an event brought into the Games for the first time.
World champion Anna Meares made an early move as soon as the pace-setting bike went off the track, but Pendleton accelerated from one-and-a-half laps to go and took to the front before sensationally pulling away to claim her second Olympic gold.
Meares, of Australia, was a distant fifth.
Pendleton celebrated with her fiance Scott Gardner, a coach with British Cycling.
Pendleton's focus was now set to turn to the individual sprint, which begins on Sunday and finishes on Tuesday's final day of the track programme.