Saturday, December 19, 2026
Distance
Climb
Start Time
Cutoff
Terrain
Difficulty
The Shortest Day is a new dawn-to-dusk winter trail challenge taking place at the scenic Box Hill, Dorking. Runners complete a 10-mile trail loop (approx. 2,400 ft elevation per lap) and can stop after any completed loop, running from sunrise (~08:03) to sunset (~15:53). Entry includes full insurance, medical cover, aid stations and finishers medals.
Box Hill scenic trails
Dawn-to-dusk running
10-mile loop with 2400ft elevation per lap
Start / Finish
Box Hill Main Car Park
Box Hill Main Car Park
Terrain
Route
Race Day
What you get
Finisher medal
Full insurance
Medical cover
Aid stations
Finishers medals
On the day
Toilets
Marshals on course
Before you enter
Other questions
Yes, you can stop after any completed loop. The event is based on time, not distance.
Dorking, United Kingdom
Saturday, December 19, 2026
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€98
entry fee