Five thousand people were the first to cross the finish line at the Olympic Stadium in the 5-mile National Lottery Olympic Park Run - the first public event at the east London stadium.
Men's winner was Tommy Davies, 26, of Loughborough while former model Nell McAndrew, 38, was the women's winner.
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Michael Haines said he wanted to continue his brother's legacy so he would be remembered for his good work rather than his death.
Tomorrow should be a bit quieter in most places, with lighter winds and some lovely winter sunshine.
There will be a widespread frost and ice to watch out for tonight, with some bitterly cold temperatures too.