Up to 54,000 runners are preparing to take part in the 30th Great North Run in the North East.
The 13.1-mile race will start in Newcastle and finish in South Shields later.
The runners will be given their starting signal by Geordie TV double act Ant McPartlin and Declan Donnelly.
Ethiopian runner Haile Gebrselassie – widely regarded as the world’s greatest-ever long distance runner – is one of those taking part.
Train operator East Coast is running extra services from stations in Yorkshire and County Durham to Newcastle before the race.
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