The BBC have reported that details of the 38,000 entrants to the London Marathon were accidentally published on the organisers' website. The details were accessible to anyone logging on to the website.
However, Marathon organisers have apologised and said the mistake had been rectified.
Tens of thousands of fun runners, amateur athletes and celebrities took part in the 32nd London Marathon.
Runner Matthew Loddy nears the end of his ‘100 marathons in 100 days’ challenge which has taken in Europe and parts of the UK.