Great Britain's Jess Varnish and Victoria Pendleton missed out on a ride-off for Olympic gold after being relegated by officials for a takeover infringement.
Varnish and Pendleton had set a world record in the two-woman, two-lap event in qualifying, seeing the mark broken moments later by China.
The Britons set the second fastest time in the first round and were due to advance to the final against China, who set another world record, but officials ruled against them.
Pendleton was set to resume competition in the keirin tomorrow, but for Varnish the Games are over.
It meant Germany were promoted to the final against China, with Australia and Holland to contest bronze.
Olympic medal winners from the East have been welcomed back to the region
Some of the region's Olympians have been immortalised in Lego.
Olympic bronze medal winning hockey player, Chloe Rogers from Great Dunmow, returns to Essex.