Runaway Racing North Chilterns 50K
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
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The course
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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How to enter
Sat, 21 Nov 2026 · Entries open
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Common questions
- The North Chilterns 50K is one distance: 50K (31.1 miles).