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The Maverick X Series Chilterns

Stonor, United Kingdom • 19 Jul 2025

The Maverick X Series Chilterns 2025 is a trail running event held at the historic Stonor Park estate near Henley-on-Thames, Oxfordshire. Set within the Chilterns Area of Outstanding Natural Beauty, the race offers four challenging routes ranging from 12 km to an ultra 52 km, featuring significant elevation gains up to 1214 meters. Participants run through woodland trails with steep climbs and descents up to 22%, alongside opportunities to spot local wildlife like fallow deer and rare red kites. The event emphasizes environmental care with plastic-free outposts and requires runners to carry essential safety gear. Facilities include free parking, timed results, and refreshments at multiple outposts. Visit the organization's website for the most recent information.

United Kingdom South East (England) Stonor

Race information

Registration
UTMB 50K
52 km
1223 m+
Ultra
42 km
1016 m+
Long
22 km
517 m+
Middle
12 km
244 m+
Short
Visit the organization's website for the most recent information.
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