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North Chilterns 50K

location_city North Hertfordshire

flag United Kingdom

calendar_today 21 Nov, 2026

directions_run Running

language Official Website

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About the Event

Discover the captivating ridgeline trails of the North Chilterns at the North Chilterns 50K on Saturday, November 21, 2026, a beautifully crafted ultra that offers stunning, far-reaching views and classic undulating terrain. Starting and finishing from the elegant Putteridge Bury Estate, this fully-marked 50km route is a delightful mix of flowing trails, punctuated by iconic climbs like Warden Hill and the scenic Barton & Pegsdon Hills, ensuring the running remains varied and engaging throughout. As a UTMB World Series Index Race, it attracts a field of dedicated trail runners while maintaining a friendly, community-focused atmosphere with exceptional organization and support from Runaway Racing. With three well-stocked aid stations featuring Precision Fuel & Hydration products, an 8-hour 45-minute time limit, and a maximum of 250 runners, the event balances a serious ultra challenge with a manageable, welcoming scale. The crisp autumn conditions add an extra layer of adventure to the soft trails, making it the perfect season-ending goal or a benchmark event for runners building their ultra-distance experience. Secure your entry for a late-November day where every climb is rewarded with a breathtaking vista, and the finish line marks a significant achievement on these timeless English trails.

Races Offered

50KM Ultra Trail

Nov 21, 2026

straighten

Distance — 50K

terrain

Type — Trail running

timer

09:00

Weather Overview

These values represent the 3-year monthly averages for November in North Hertfordshire.

Temp (°C)
Feels Like (°C)
thermostat 5.4° / 10.5°
wb_sunny 1.2° / 6.8°
Wind (km/h)
Humidity (%)
air 16.9 /
water_drop 87.8%

About North Hertfordshire

Scenic view of

North Hertfordshire is one of ten local government districts in the county of Hertfordshire, England. Its council is based in Letchworth Garden City and the largest town is Hitchin. The district also includes the towns of Baldock and Royston and numerous villages and surrounding rural areas. Part of the district lies within the Chiltern Hills, a designated Area of Outstanding Natural Beauty.

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Hotels & Places to Stay

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