Thousands race 'one of UK's flattest half-marathons'
The Great Eastern Run is prized for the speed of its course and attracts more than 5,000 runners.
Half Marathon
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Beijing half marathon results annulled after cheating claims
The athletes who finished in the top four places have been retrospectively disqualified from the event and stripped of their trophies and bonuses.
Race organisers investigating controversial Beijing half marathon finish
Video footage of the race shows three African runners appear to hold back and encourage a Chinese long-distance runner to overtake them.