Maverick Adidas Terrex X Series Chilterns

X-Series Chilterns sets off four brand new trail running routes from the 850-years old manor house of Stonor Park.

Date Saturday 19th July, 2025
Distance Ultra + other events: 12K, 22K, 42K
LocationStonor Park
Town/CityHenley-on-Thames
AreaBuckinghamshire, Bedfordshire & Hertfordshire
Start postcodeRG9 6HF
OrganiserBen Macwilliam
WebsiteVisit website
Run For CharityGoFundMe Start Fundraising On GoFundMe

View all races for Jul 2025

The estate is home to one of the most ancient deer herds in Britain, so keep your eyes peeled for the graceful fallow deer that have grazed here since medieval times. Out on the trails if you’re lucky you may also spot the rare red kite.

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