The Bournemouth marathon and half marathon are under way, started by a man who knows more than most about what it takes.
Ben Smith is close to the end of an incredible challenge of running the equivalent of 401 marathons in as many days.
The Bournemouth Marathon will be his 398th marathon.
13 thousand people are taking part in the event, which runs along the seafront between Boscombe and Bournemouth.
For more route details click here
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