The Water of Life 10k and half marathon race has been postponed because of flooding along the River Thames towpath.
Organisers Purple Patch Running have taken the 'difficult decision' to postpone the race which was due to take place on Sunday (March 24).
The course would have seen runners follow a route along the river from Bisham to Henley and back again.
It has now been rescheduled for Sunday, July 7.
"There are some areas of the towpath that are under four inches of water and there are no alternative routes, said Chris Donald, director of Purple Patch Running.
"We have about 800 runners due to take part so we didn't take this difficult decision lightly.
"We just felt it would have been chaos if we'd gone ahead, and if one of the runners had fallen into the river that could have been disastrous."
Chris said all participants had been notified about the postponement by email and the information is also on the Purple Patch Running website.
Visit http://www.purplepatchrunning.com/ for details.
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