Thousands of runners took part in the English National Cross Country Championships on Saturday.
The event took place at Hardwick East Park in Sedgefield, marking the national's return to County Durham for the first time in 25 years.
Hosted by Sedgefield Harriers, the club said the north-east of England was well-represented and 50 athletes competed alongside their volunteering duties.
The senior women's race was won by Lucy Jones from Herne Hill Harriers while the senior men's race was won by Hugo Milner of Derby Athletic Club.
Of the 3,800 athletes involved, about 1,800 were junior runners, while the biggest single field of the day was 1,300 in the senior men's race.
Sue Dobson, chair of Sedgefield Harriers said the club was "proud to host this prestigious national event".
"I am proud that we had 50 athletes from the club taking part, representing every age decade from our talented teenagers to one lady in her 70s."
Reform leader of Durham County Council, councillor Andrew Husband, said he hoped the event "will help to put County Durham on the map for future prestigious events" and inspire more residents to take up running.
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