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Runaway Racing North Chilterns 50K

Offley, HertfordshireSat, 21 Nov 2026

Fifty kilometres through the northern Chilterns in November, starting near Offley.

50K

31 miles

646 m ascent

13 m per km

8h 45m cut-off

10:30/km to make it

chalkwoodlandMarked course

Nobody has reviewed this one yet

No reviews of the North Chilterns 50K, and nothing on what people wore. Both are things no organiser publishes and every runner wants before they enter — how it actually went, and what was on your feet.

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The course

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VERY HARD

TRP grade · E4·T2

8h 45m cut-off, which needs 10:30/km

What you’re in for

Fifty kilometres through the northern Chilterns in November, starting near Offley, with 646m of climb, marked, and eight and three-quarter hours. The winter partner to Runaway's Chiltern Ridge race, on the quieter end of the hills between Hitchin and Luton.

Terrain and trail

Chalk downland and beech woods on the Chilterns' northern edge — firm bridleway, rooty woodland path, November mud. Marked. A trail shoe.

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Races from other organisers starting within 30 km of Offley, Hertfordshire, nearest first.

How to enter

Sat, 21 Nov 2026 · Entries open

Enter on their website ↗

Entries are handled by Runaway Racing, not by us. We take nothing for sending you there.

Add to your calendar · with the start time

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Common questions

The North Chilterns 50K is one distance: 50K (31.1 miles).