Norwood put out the biggest communal marathon team, which raised £80,000 for the children and families charity.

It included one of the youngest entrants, 19-year-old Noah Lachs, a student at Lincoln College, Oxford, whose friend's sister was supported by Norwood.

Mr Lachs clocked 4:40, having run the entire distance close to DJ Chris Evans. "The atmosphere was indescribable," he said. "Sometimes I felt that the crowd were propelling me forward."

The other Norwood runners were Tristan Nagler, Ben Hodis, Judith Finegold, Marc Jackson, Alana Camm, Andrea Fraquelli, Daragh Behrman, Simon Durkin, Miriam Dennis, Nicholas Roseborne, Stephen Davison, Flora Frank, Ket Patel, Jonathan Kaye, Kamlesh Patel, Matt Grice, Ben Glendening, Neil Gallagher, Ben Hardman, Ryan Cain, Stuart Farmer and Laura Carsen.