Shadow chancellor Ed Balls revealed he had an unlikely sponsor for his London Marathon effort - political rival George Osborne.
The Chancellor donated £25 to each of Mr Ball's chosen charities, Action for Stammering Children and Whizz-Kidz.
Mr Balls, who finished the race in five hours and 14 minutes, told Sky News: "The good thing is George Osborne, the Chancellor, who I have often disagreed with on many things, he sponsored me for my run today so thanks George for that."
ITV News' Royal Correspondent reflects on running the London Marathon in the shadow of one of Africa's most endangered species.
Tens of thousands of runners turned out for the London Marathon in a show of solidarity to the Boston bomb attack victims.
London Marathon runners will wear black ribbons and observe a 30-second silence to honour the victims of the Boston Marathon bombings.