London Marathon hit by doping claims

The London Marathon has been won by seven athletes with suspicious blood test scores in the last 12 years, according to reports.

Blood test results from more than 5,000 athletes were leaked to the media last week, suggesting that a third of all medallists in endurance events at the Olympics and World Championships had suspicious test results which were not followed up.

The Sunday Times is now reporting that, since 2003, seven winners, six runners-up and seven third-placed finishers at the London Marathon have recorded blood results that were "deemed suspicious".

The report also claims that one in four winners of the last 34 major city marathons, which includes the London, New York, and Boston marathons, should have been investigated over evidence of potential blood doping.