Harpenden
Trail Running Calendar near Harpenden 2026-2027
Explore the top trail runs near Harpenden for 2026-2027! We've gathered 155 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
February 2027
A scenic 10 mile race in Milton Keynes that follows riverside parkland and passes through the narrow Cattle Creep tunnel, with canicross friendly provisions and chip timing.
Looped trail and road races near Chalfont St Peter offering 7K and 10K loops with distance choices up to ultramarathons plus aid stations and medical support.
Valentines run at Riverside Park St Neots with a lap format from one 5.3 km lap to ultra distances within a six hour limit.
Looped trail and road races near Chalfont St Peter offering 7K and 10K loops with distance choices up to ultramarathons plus aid stations and medical support.
A timed lap event in Crystal Palace Park on 21 February 2027 where runners complete 2.65 km laps to reach distances from 5 km to ultra, with a seven hour limit and a finishers' memento for all participants.
A 42-mile trail race from Chipping Ongar to the ancient Chapel of St Peter-on-the-Wall, following an old pilgrimage route through rural Essex. Mostly off-road and often muddy, the route is waymarked with GPX support, four outdoor checkpoints and mand..
Looped trail and road races near Chalfont St Peter offering 7K and 10K loops with distance choices up to ultramarathons plus aid stations and medical support.
March 2027
A 10 km mixed-terrain run from Windsor & Eton Brewery along towpaths and parkland, with staggered starts, a pint cup and free drink at the finish, chip timing and downloadable race photos.
A 13-mile trail half marathon in the Chiltern Hills with guided run leaders, grouped pacing, a refreshment point, finisher’s medal and a Trees not Tees certificate.
Trail event at Hyde Hall Farm offering 10k, half, full and ultra distances with lap-based courses, water at the lap point, secure parking and a bespoke finisher medal. The event is cupless so bring a refillable cup or bottle.
A 50km trail ultramarathon through the Chilterns centered at Stonor Park, run as two 25km loops with 4000 ft of climb, five aid stations and full medical support. The event has a nine hour finish limit and medals for all finishers.
Looped trail and road races near Chalfont St Peter offering 7K and 10K loops with distance choices up to ultramarathons plus aid stations and medical support.
April 2027
A night running challenge at Hyde Hall Farm offering twelve hour or six hour shifts under the stars. Head torches are required and hot drinks plus an aid station are provided with a medal for every finisher.
A 50K trail ultra across the Ridgeway between Berkhamsted Castle and Wendover, with three aid stations, marked navigation and a 9 hour limit.
A guided 42.2 km trail run through the Chiltern Hills with qualified Run Leaders, checkpoints, mandatory trail shoes and a wooden finisher's medal.